681012670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{39989}}^1$

素因数の和:40140

約数の個数: 32

約数和(自身を含む): 1330227360

約数和(自身を除く): 649214690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1310, 1703, 3406, 8515, 17030, 39989, 79978, 199945, 399890, 519857, 1039714, 2599285, 5198570, 5238559, 10477118, 26192795, 52385590, 68101267, 136202534, 340506335, 681012670]

約数ペア:

[(1, 681012670), (2, 340506335), (5, 136202534), (10, 68101267), (13, 52385590), (26, 26192795), (65, 10477118), (130, 5238559), (131, 5198570), (262, 2599285), (655, 1039714), (1310, 519857), (1703, 399890), (3406, 199945), (8515, 79978), (17030, 39989)]