1291408360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2935019}}^1$

素因数の和:2935041

約数の個数: 32

約数和(自身を含む): 3169821600

約数和(自身を除く): 1878413240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 2935019, 5870038, 11740076, 14675095, 23480152, 29350190, 32285209, 58700380, 64570418, 117400760, 129140836, 161426045, 258281672, 322852090, 645704180, 1291408360]

約数ペア:

[(1, 1291408360), (2, 645704180), (4, 322852090), (5, 258281672), (8, 161426045), (10, 129140836), (11, 117400760), (20, 64570418), (22, 58700380), (40, 32285209), (44, 29350190), (55, 23480152), (88, 14675095), (110, 11740076), (220, 5870038), (440, 2935019)]