78579280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75557}}^1$

素因数の和:75583

約数の個数: 40

約数和(自身を含む): 196753032

約数和(自身を除く): 118173752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75557, 151114, 302228, 377785, 604456, 755570, 982241, 1208912, 1511140, 1964482, 3022280, 3928964, 4911205, 6044560, 7857928, 9822410, 15715856, 19644820, 39289640, 78579280]

約数ペア:

[(1, 78579280), (2, 39289640), (4, 19644820), (5, 15715856), (8, 9822410), (10, 7857928), (13, 6044560), (16, 4911205), (20, 3928964), (26, 3022280), (40, 1964482), (52, 1511140), (65, 1208912), (80, 982241), (104, 755570), (130, 604456), (208, 377785), (260, 302228), (520, 151114), (1040, 75557)]