61988580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{661}}^1$

素因数の和:1197

約数の個数: 72

約数和(自身を含む): 188677944

約数和(自身を除く): 126689364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 661, 1042, 1322, 1563, 1983, 2084, 2605, 2644, 3126, 3305, 3966, 4689, 5210, 5949, 6252, 6610, 7815, 7932, 9378, 9915, 10420, 11898, 13220, 15630, 18756, 19830, 23445, 23796, 29745, 31260, 39660, 46890, 59490, 93780, 118980, 344381, 688762, 1033143, 1377524, 1721905, 2066286, 3099429, 3443810, 4132572, 5165715, 6198858, 6887620, 10331430, 12397716, 15497145, 20662860, 30994290, 61988580]

約数ペア:

[(1, 61988580), (2, 30994290), (3, 20662860), (4, 15497145), (5, 12397716), (6, 10331430), (9, 6887620), (10, 6198858), (12, 5165715), (15, 4132572), (18, 3443810), (20, 3099429), (30, 2066286), (36, 1721905), (45, 1377524), (60, 1033143), (90, 688762), (180, 344381), (521, 118980), (661, 93780), (1042, 59490), (1322, 46890), (1563, 39660), (1983, 31260), (2084, 29745), (2605, 23796), (2644, 23445), (3126, 19830), (3305, 18756), (3966, 15630), (4689, 13220), (5210, 11898), (5949, 10420), (6252, 9915), (6610, 9378), (7815, 7932)]