20651460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{701}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 58024512

約数和(自身を除く): 37373052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 701, 982, 1402, 1473, 1964, 2103, 2455, 2804, 2946, 3505, 4206, 4910, 5892, 7010, 7365, 8412, 9820, 10515, 14020, 14730, 21030, 29460, 42060, 344191, 688382, 1032573, 1376764, 1720955, 2065146, 3441910, 4130292, 5162865, 6883820, 10325730, 20651460]

約数ペア:

[(1, 20651460), (2, 10325730), (3, 6883820), (4, 5162865), (5, 4130292), (6, 3441910), (10, 2065146), (12, 1720955), (15, 1376764), (20, 1032573), (30, 688382), (60, 344191), (491, 42060), (701, 29460), (982, 21030), (1402, 14730), (1473, 14020), (1964, 10515), (2103, 9820), (2455, 8412), (2804, 7365), (2946, 7010), (3505, 5892), (4206, 4910)]