81588440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119983}}^1$

素因数の和:120011

約数の個数: 32

約数和(自身を含む): 194374080

約数和(自身を除く): 112785640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119983, 239966, 479932, 599915, 959864, 1199830, 2039711, 2399660, 4079422, 4799320, 8158844, 10198555, 16317688, 20397110, 40794220, 81588440]

約数ペア:

[(1, 81588440), (2, 40794220), (4, 20397110), (5, 16317688), (8, 10198555), (10, 8158844), (17, 4799320), (20, 4079422), (34, 2399660), (40, 2039711), (68, 1199830), (85, 959864), (136, 599915), (170, 479932), (340, 239966), (680, 119983)]