12641761040

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{655693}}^1$

素因数の和:655947

約数の個数: 40

約数和(自身を含む): 29514098328

約数和(自身を除く): 16872337288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1205, 1928, 2410, 3856, 4820, 9640, 19280, 655693, 1311386, 2622772, 3278465, 5245544, 6556930, 10491088, 13113860, 26227720, 52455440, 158022013, 316044026, 632088052, 790110065, 1264176104, 1580220130, 2528352208, 3160440260, 6320880520, 12641761040]

約数ペア:

[(1, 12641761040), (2, 6320880520), (4, 3160440260), (5, 2528352208), (8, 1580220130), (10, 1264176104), (16, 790110065), (20, 632088052), (40, 316044026), (80, 158022013), (241, 52455440), (482, 26227720), (964, 13113860), (1205, 10491088), (1928, 6556930), (2410, 5245544), (3856, 3278465), (4820, 2622772), (9640, 1311386), (19280, 655693)]