20166412520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{7457}}^1$

素因数の和:7623

約数の個数: 128

約数和(自身を含む): 49729347360

約数和(自身を除く): 29562934840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 97, 136, 164, 170, 194, 205, 328, 340, 388, 410, 485, 680, 697, 776, 820, 970, 1394, 1640, 1649, 1940, 2788, 3298, 3485, 3880, 3977, 5576, 6596, 6970, 7457, 7954, 8245, 13192, 13940, 14914, 15908, 16490, 19885, 27880, 29828, 31816, 32980, 37285, 39770, 59656, 65960, 67609, 74570, 79540, 126769, 135218, 149140, 159080, 253538, 270436, 298280, 305737, 338045, 507076, 540872, 611474, 633845, 676090, 723329, 1014152, 1222948, 1267690, 1352180, 1446658, 1528685, 2445896, 2535380, 2704360, 2893316, 3057370, 3616645, 5070760, 5197529, 5786632, 6114740, 7233290, 10395058, 12229480, 12296593, 14466580, 20790116, 24593186, 25987645, 28933160, 29656489, 41580232, 49186372, 51975290, 59312978, 61482965, 98372744, 103950580, 118625956, 122965930, 148282445, 207901160, 237251912, 245931860, 296564890, 491863720, 504160313, 593129780, 1008320626, 1186259560, 2016641252, 2520801565, 4033282504, 5041603130, 10083206260, 20166412520]

約数ペア:

[(1, 20166412520), (2, 10083206260), (4, 5041603130), (5, 4033282504), (8, 2520801565), (10, 2016641252), (17, 1186259560), (20, 1008320626), (34, 593129780), (40, 504160313), (41, 491863720), (68, 296564890), (82, 245931860), (85, 237251912), (97, 207901160), (136, 148282445), (164, 122965930), (170, 118625956), (194, 103950580), (205, 98372744), (328, 61482965), (340, 59312978), (388, 51975290), (410, 49186372), (485, 41580232), (680, 29656489), (697, 28933160), (776, 25987645), (820, 24593186), (970, 20790116), (1394, 14466580), (1640, 12296593), (1649, 12229480), (1940, 10395058), (2788, 7233290), (3298, 6114740), (3485, 5786632), (3880, 5197529), (3977, 5070760), (5576, 3616645), (6596, 3057370), (6970, 2893316), (7457, 2704360), (7954, 2535380), (8245, 2445896), (13192, 1528685), (13940, 1446658), (14914, 1352180), (15908, 1267690), (16490, 1222948), (19885, 1014152), (27880, 723329), (29828, 676090), (31816, 633845), (32980, 611474), (37285, 540872), (39770, 507076), (59656, 338045), (65960, 305737), (67609, 298280), (74570, 270436), (79540, 253538), (126769, 159080), (135218, 149140)]