90181870

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 165110400

約数和(自身を除く): 74928530

約数列:

[1, 2, 5, 10, 97, 194, 239, 389, 478, 485, 778, 970, 1195, 1945, 2390, 3890, 23183, 37733, 46366, 75466, 92971, 115915, 185942, 188665, 231830, 377330, 464855, 929710, 9018187, 18036374, 45090935, 90181870]

約数ペア:

[(1, 90181870), (2, 45090935), (5, 18036374), (10, 9018187), (97, 929710), (194, 464855), (239, 377330), (389, 231830), (478, 188665), (485, 185942), (778, 115915), (970, 92971), (1195, 75466), (1945, 46366), (2390, 37733), (3890, 23183)]