69145540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 148780800

約数和(自身を除く): 79635260

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 316, 395, 409, 428, 535, 790, 818, 1070, 1580, 1636, 2045, 2140, 4090, 8180, 8453, 16906, 32311, 33812, 42265, 43763, 64622, 84530, 87526, 129244, 161555, 169060, 175052, 218815, 323110, 437630, 646220, 875260, 3457277, 6914554, 13829108, 17286385, 34572770, 69145540]

約数ペア:

[(1, 69145540), (2, 34572770), (4, 17286385), (5, 13829108), (10, 6914554), (20, 3457277), (79, 875260), (107, 646220), (158, 437630), (214, 323110), (316, 218815), (395, 175052), (409, 169060), (428, 161555), (535, 129244), (790, 87526), (818, 84530), (1070, 64622), (1580, 43763), (1636, 42265), (2045, 33812), (2140, 32311), (4090, 16906), (8180, 8453)]