72423220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{88321}}^1$

素因数の和:88371

約数の個数: 24

約数和(自身を含む): 155800008

約数和(自身を除く): 83376788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 88321, 176642, 353284, 441605, 883210, 1766420, 3621161, 7242322, 14484644, 18105805, 36211610, 72423220]

約数ペア:

[(1, 72423220), (2, 36211610), (4, 18105805), (5, 14484644), (10, 7242322), (20, 3621161), (41, 1766420), (82, 883210), (164, 441605), (205, 353284), (410, 176642), (820, 88321)]