123923720

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12343}}^1$

素因数の和:12605

約数の個数: 32

約数和(自身を含む): 279961920

約数和(自身を除く): 156038200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 12343, 24686, 49372, 61715, 98744, 123430, 246860, 493720, 3098093, 6196186, 12392372, 15490465, 24784744, 30980930, 61961860, 123923720]

約数ペア:

[(1, 123923720), (2, 61961860), (4, 30980930), (5, 24784744), (8, 15490465), (10, 12392372), (20, 6196186), (40, 3098093), (251, 493720), (502, 246860), (1004, 123430), (1255, 98744), (2008, 61715), (2510, 49372), (5020, 24686), (10040, 12343)]