648967020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26839}}^1$

素因数の和:26895

約数の個数: 96

約数和(自身を含む): 2020085760

約数和(自身を除く): 1371118740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 930, 1209, 1612, 1860, 2015, 2418, 4030, 4836, 6045, 8060, 12090, 24180, 26839, 53678, 80517, 107356, 134195, 161034, 268390, 322068, 348907, 402585, 536780, 697814, 805170, 832009, 1046721, 1395628, 1610340, 1664018, 1744535, 2093442, 2496027, 3328036, 3489070, 4160045, 4186884, 4992054, 5233605, 6978140, 8320090, 9984108, 10467210, 10816117, 12480135, 16640180, 20934420, 21632234, 24960270, 32448351, 43264468, 49920540, 54080585, 64896702, 108161170, 129793404, 162241755, 216322340, 324483510, 648967020]

約数ペア:

[(1, 648967020), (2, 324483510), (3, 216322340), (4, 162241755), (5, 129793404), (6, 108161170), (10, 64896702), (12, 54080585), (13, 49920540), (15, 43264468), (20, 32448351), (26, 24960270), (30, 21632234), (31, 20934420), (39, 16640180), (52, 12480135), (60, 10816117), (62, 10467210), (65, 9984108), (78, 8320090), (93, 6978140), (124, 5233605), (130, 4992054), (155, 4186884), (156, 4160045), (186, 3489070), (195, 3328036), (260, 2496027), (310, 2093442), (372, 1744535), (390, 1664018), (403, 1610340), (465, 1395628), (620, 1046721), (780, 832009), (806, 805170), (930, 697814), (1209, 536780), (1612, 402585), (1860, 348907), (2015, 322068), (2418, 268390), (4030, 161034), (4836, 134195), (6045, 107356), (8060, 80517), (12090, 53678), (24180, 26839)]