279212220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:257

約数の個数: 288

約数和(自身を含む): 1037836800

約数和(自身を除く): 758624580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 107, 109, 114, 126, 133, 140, 171, 180, 190, 210, 214, 218, 228, 252, 266, 285, 315, 321, 327, 342, 380, 399, 420, 428, 436, 532, 535, 545, 570, 630, 642, 654, 665, 684, 749, 763, 798, 855, 963, 981, 1070, 1090, 1140, 1197, 1260, 1284, 1308, 1330, 1498, 1526, 1596, 1605, 1635, 1710, 1926, 1962, 1995, 2033, 2071, 2140, 2180, 2247, 2289, 2394, 2660, 2996, 3052, 3210, 3270, 3420, 3745, 3815, 3852, 3924, 3990, 4066, 4142, 4494, 4578, 4788, 4815, 4905, 5985, 6099, 6213, 6420, 6540, 6741, 6867, 7490, 7630, 7980, 8132, 8284, 8988, 9156, 9630, 9810, 10165, 10355, 11235, 11445, 11663, 11970, 12198, 12426, 13482, 13734, 14231, 14497, 14980, 15260, 18297, 18639, 19260, 19620, 20330, 20710, 22470, 22890, 23326, 23940, 24396, 24852, 26964, 27468, 28462, 28994, 30495, 31065, 33705, 34335, 34989, 36594, 37278, 40660, 41420, 42693, 43491, 44940, 45780, 46652, 56924, 57988, 58315, 60990, 62130, 67410, 68670, 69978, 71155, 72485, 73188, 74556, 81641, 85386, 86982, 91485, 93195, 104967, 116630, 121980, 124260, 128079, 130473, 134820, 137340, 139956, 142310, 144970, 163282, 170772, 173964, 174945, 182970, 186390, 209934, 213465, 217455, 221597, 233260, 244923, 256158, 260946, 284620, 289940, 326564, 349890, 365940, 372780, 408205, 419868, 426930, 434910, 443194, 489846, 512316, 521892, 524835, 640395, 652365, 664791, 699780, 734769, 816410, 853860, 869820, 886388, 979692, 1049670, 1107985, 1224615, 1280790, 1304730, 1329582, 1469538, 1551179, 1632820, 1994373, 2099340, 2215970, 2449230, 2561580, 2609460, 2659164, 2939076, 3102358, 3323955, 3673845, 3988746, 4431940, 4653537, 4898460, 6204716, 6647910, 7347690, 7755895, 7977492, 9307074, 9971865, 13295820, 13960611, 14695380, 15511790, 18614148, 19943730, 23267685, 27921222, 31023580, 39887460, 46535370, 55842444, 69803055, 93070740, 139606110, 279212220]

約数ペア:

[(1, 279212220), (2, 139606110), (3, 93070740), (4, 69803055), (5, 55842444), (6, 46535370), (7, 39887460), (9, 31023580), (10, 27921222), (12, 23267685), (14, 19943730), (15, 18614148), (18, 15511790), (19, 14695380), (20, 13960611), (21, 13295820), (28, 9971865), (30, 9307074), (35, 7977492), (36, 7755895), (38, 7347690), (42, 6647910), (45, 6204716), (57, 4898460), (60, 4653537), (63, 4431940), (70, 3988746), (76, 3673845), (84, 3323955), (90, 3102358), (95, 2939076), (105, 2659164), (107, 2609460), (109, 2561580), (114, 2449230), (126, 2215970), (133, 2099340), (140, 1994373), (171, 1632820), (180, 1551179), (190, 1469538), (210, 1329582), (214, 1304730), (218, 1280790), (228, 1224615), (252, 1107985), (266, 1049670), (285, 979692), (315, 886388), (321, 869820), (327, 853860), (342, 816410), (380, 734769), (399, 699780), (420, 664791), (428, 652365), (436, 640395), (532, 524835), (535, 521892), (545, 512316), (570, 489846), (630, 443194), (642, 434910), (654, 426930), (665, 419868), (684, 408205), (749, 372780), (763, 365940), (798, 349890), (855, 326564), (963, 289940), (981, 284620), (1070, 260946), (1090, 256158), (1140, 244923), (1197, 233260), (1260, 221597), (1284, 217455), (1308, 213465), (1330, 209934), (1498, 186390), (1526, 182970), (1596, 174945), (1605, 173964), (1635, 170772), (1710, 163282), (1926, 144970), (1962, 142310), (1995, 139956), (2033, 137340), (2071, 134820), (2140, 130473), (2180, 128079), (2247, 124260), (2289, 121980), (2394, 116630), (2660, 104967), (2996, 93195), (3052, 91485), (3210, 86982), (3270, 85386), (3420, 81641), (3745, 74556), (3815, 73188), (3852, 72485), (3924, 71155), (3990, 69978), (4066, 68670), (4142, 67410), (4494, 62130), (4578, 60990), (4788, 58315), (4815, 57988), (4905, 56924), (5985, 46652), (6099, 45780), (6213, 44940), (6420, 43491), (6540, 42693), (6741, 41420), (6867, 40660), (7490, 37278), (7630, 36594), (7980, 34989), (8132, 34335), (8284, 33705), (8988, 31065), (9156, 30495), (9630, 28994), (9810, 28462), (10165, 27468), (10355, 26964), (11235, 24852), (11445, 24396), (11663, 23940), (11970, 23326), (12198, 22890), (12426, 22470), (13482, 20710), (13734, 20330), (14231, 19620), (14497, 19260), (14980, 18639), (15260, 18297)]