81125890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{997}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 149460480

約数和(自身を除く): 68334590

約数列:

[1, 2, 5, 10, 79, 103, 158, 206, 395, 515, 790, 997, 1030, 1994, 4985, 8137, 9970, 16274, 40685, 78763, 81370, 102691, 157526, 205382, 393815, 513455, 787630, 1026910, 8112589, 16225178, 40562945, 81125890]

約数ペア:

[(1, 81125890), (2, 40562945), (5, 16225178), (10, 8112589), (79, 1026910), (103, 787630), (158, 513455), (206, 393815), (395, 205382), (515, 157526), (790, 102691), (997, 81370), (1030, 78763), (1994, 40685), (4985, 16274), (8137, 9970)]