64218420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{809}}^1$

素因数の和:844

約数の個数: 180

約数和(自身を含む): 234635940

約数和(自身を除く): 170417520

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 490, 540, 567, 588, 630, 735, 756, 809, 810, 882, 945, 980, 1134, 1260, 1323, 1470, 1618, 1620, 1764, 1890, 2205, 2268, 2427, 2646, 2835, 2940, 3236, 3780, 3969, 4045, 4410, 4854, 5292, 5663, 5670, 6615, 7281, 7938, 8090, 8820, 9708, 11326, 11340, 12135, 13230, 14562, 15876, 16180, 16989, 19845, 21843, 22652, 24270, 26460, 28315, 29124, 33978, 36405, 39641, 39690, 43686, 48540, 50967, 56630, 65529, 67956, 72810, 79282, 79380, 84945, 87372, 101934, 109215, 113260, 118923, 131058, 145620, 152901, 158564, 169890, 198205, 203868, 218430, 237846, 254835, 262116, 305802, 327645, 339780, 356769, 396410, 436860, 458703, 475692, 509670, 594615, 611604, 655290, 713538, 764505, 792820, 917406, 1019340, 1070307, 1189230, 1310580, 1427076, 1529010, 1783845, 1834812, 2140614, 2293515, 2378460, 3058020, 3210921, 3567690, 4281228, 4587030, 5351535, 6421842, 7135380, 9174060, 10703070, 12843684, 16054605, 21406140, 32109210, 64218420]

約数ペア:

[(1, 64218420), (2, 32109210), (3, 21406140), (4, 16054605), (5, 12843684), (6, 10703070), (7, 9174060), (9, 7135380), (10, 6421842), (12, 5351535), (14, 4587030), (15, 4281228), (18, 3567690), (20, 3210921), (21, 3058020), (27, 2378460), (28, 2293515), (30, 2140614), (35, 1834812), (36, 1783845), (42, 1529010), (45, 1427076), (49, 1310580), (54, 1189230), (60, 1070307), (63, 1019340), (70, 917406), (81, 792820), (84, 764505), (90, 713538), (98, 655290), (105, 611604), (108, 594615), (126, 509670), (135, 475692), (140, 458703), (147, 436860), (162, 396410), (180, 356769), (189, 339780), (196, 327645), (210, 305802), (245, 262116), (252, 254835), (270, 237846), (294, 218430), (315, 203868), (324, 198205), (378, 169890), (405, 158564), (420, 152901), (441, 145620), (490, 131058), (540, 118923), (567, 113260), (588, 109215), (630, 101934), (735, 87372), (756, 84945), (809, 79380), (810, 79282), (882, 72810), (945, 67956), (980, 65529), (1134, 56630), (1260, 50967), (1323, 48540), (1470, 43686), (1618, 39690), (1620, 39641), (1764, 36405), (1890, 33978), (2205, 29124), (2268, 28315), (2427, 26460), (2646, 24270), (2835, 22652), (2940, 21843), (3236, 19845), (3780, 16989), (3969, 16180), (4045, 15876), (4410, 14562), (4854, 13230), (5292, 12135), (5663, 11340), (5670, 11326), (6615, 9708), (7281, 8820), (7938, 8090)]