620187617

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 754790400

約数和(自身を除く): 134602783

約数列:

[1, 7, 23, 103, 149, 161, 251, 721, 1043, 1757, 2369, 3427, 5773, 15347, 16583, 23989, 25853, 37399, 40411, 107429, 180971, 261793, 352981, 594619, 860177, 2470867, 3852097, 4162333, 6021239, 26964679, 88598231, 620187617]

約数ペア:

[(1, 620187617), (7, 88598231), (23, 26964679), (103, 6021239), (149, 4162333), (161, 3852097), (251, 2470867), (721, 860177), (1043, 594619), (1757, 352981), (2369, 261793), (3427, 180971), (5773, 107429), (15347, 40411), (16583, 37399), (23989, 25853)]