20431015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 28864512

約数和(自身を除く): 8433497

約数列:

[1, 5, 11, 23, 31, 55, 115, 155, 253, 341, 521, 713, 1265, 1705, 2605, 3565, 5731, 7843, 11983, 16151, 28655, 39215, 59915, 80755, 131813, 177661, 371473, 659065, 888305, 1857365, 4086203, 20431015]

約数ペア:

[(1, 20431015), (5, 4086203), (11, 1857365), (23, 888305), (31, 659065), (55, 371473), (115, 177661), (155, 131813), (253, 80755), (341, 59915), (521, 39215), (713, 28655), (1265, 16151), (1705, 11983), (2605, 7843), (3565, 5731)]