61241220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{857}}^1$

素因数の和:1269

約数の個数: 72

約数和(自身を含む): 186450264

約数和(自身を除く): 125209044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 857, 1191, 1588, 1714, 1985, 2382, 2571, 3428, 3573, 3970, 4285, 4764, 5142, 5955, 7146, 7713, 7940, 8570, 10284, 11910, 12855, 14292, 15426, 17140, 17865, 23820, 25710, 30852, 35730, 38565, 51420, 71460, 77130, 154260, 340229, 680458, 1020687, 1360916, 1701145, 2041374, 3062061, 3402290, 4082748, 5103435, 6124122, 6804580, 10206870, 12248244, 15310305, 20413740, 30620610, 61241220]

約数ペア:

[(1, 61241220), (2, 30620610), (3, 20413740), (4, 15310305), (5, 12248244), (6, 10206870), (9, 6804580), (10, 6124122), (12, 5103435), (15, 4082748), (18, 3402290), (20, 3062061), (30, 2041374), (36, 1701145), (45, 1360916), (60, 1020687), (90, 680458), (180, 340229), (397, 154260), (794, 77130), (857, 71460), (1191, 51420), (1588, 38565), (1714, 35730), (1985, 30852), (2382, 25710), (2571, 23820), (3428, 17865), (3573, 17140), (3970, 15426), (4285, 14292), (4764, 12855), (5142, 11910), (5955, 10284), (7146, 8570), (7713, 7940)]