20507555240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16538351}}^1$

素因数の和:16538393

約数の個数: 32

約数和(自身を含む): 47630453760

約数和(自身を除く): 27122898520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16538351, 33076702, 66153404, 82691755, 132306808, 165383510, 330767020, 512688881, 661534040, 1025377762, 2050755524, 2563444405, 4101511048, 5126888810, 10253777620, 20507555240]

約数ペア:

[(1, 20507555240), (2, 10253777620), (4, 5126888810), (5, 4101511048), (8, 2563444405), (10, 2050755524), (20, 1025377762), (31, 661534040), (40, 512688881), (62, 330767020), (124, 165383510), (155, 132306808), (248, 82691755), (310, 66153404), (620, 33076702), (1240, 16538351)]