20461375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 29113344

約数和(自身を除く): 8651969

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 647, 1265, 1375, 2875, 3235, 6325, 7117, 14881, 16175, 31625, 35585, 74405, 80875, 163691, 177925, 372025, 818455, 889625, 1860125, 4092275, 20461375]

約数ペア:

[(1, 20461375), (5, 4092275), (11, 1860125), (23, 889625), (25, 818455), (55, 372025), (115, 177925), (125, 163691), (253, 80875), (275, 74405), (575, 35585), (647, 31625), (1265, 16175), (1375, 14881), (2875, 7117), (3235, 6325)]