31041180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 94623984

約数和(自身を除く): 63582804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 521, 662, 993, 1042, 1324, 1563, 1655, 1986, 2084, 2605, 2979, 3126, 3310, 3972, 4689, 4965, 5210, 5958, 6252, 6620, 7815, 9378, 9930, 10420, 11916, 14895, 15630, 18756, 19860, 23445, 29790, 31260, 46890, 59580, 93780, 172451, 344902, 517353, 689804, 862255, 1034706, 1552059, 1724510, 2069412, 2586765, 3104118, 3449020, 5173530, 6208236, 7760295, 10347060, 15520590, 31041180]

約数ペア:

[(1, 31041180), (2, 15520590), (3, 10347060), (4, 7760295), (5, 6208236), (6, 5173530), (9, 3449020), (10, 3104118), (12, 2586765), (15, 2069412), (18, 1724510), (20, 1552059), (30, 1034706), (36, 862255), (45, 689804), (60, 517353), (90, 344902), (180, 172451), (331, 93780), (521, 59580), (662, 46890), (993, 31260), (1042, 29790), (1324, 23445), (1563, 19860), (1655, 18756), (1986, 15630), (2084, 14895), (2605, 11916), (2979, 10420), (3126, 9930), (3310, 9378), (3972, 7815), (4689, 6620), (4965, 6252), (5210, 5958)]