84513940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2861}}^1$

素因数の和:3088

約数の個数: 48

約数和(自身を含む): 203865984

約数和(自身を除く): 119352044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2861, 2954, 4220, 5722, 5908, 7385, 11444, 14305, 14770, 20027, 28610, 29540, 40054, 57220, 80108, 100135, 200270, 400540, 603671, 1207342, 2414684, 3018355, 4225697, 6036710, 8451394, 12073420, 16902788, 21128485, 42256970, 84513940]

約数ペア:

[(1, 84513940), (2, 42256970), (4, 21128485), (5, 16902788), (7, 12073420), (10, 8451394), (14, 6036710), (20, 4225697), (28, 3018355), (35, 2414684), (70, 1207342), (140, 603671), (211, 400540), (422, 200270), (844, 100135), (1055, 80108), (1477, 57220), (2110, 40054), (2861, 29540), (2954, 28610), (4220, 20027), (5722, 14770), (5908, 14305), (7385, 11444)]