20578860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12703}}^1$

素因数の和:12724

約数の個数: 60

約数和(自身を含む): 64561728

約数和(自身を除く): 43982868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12703, 25406, 38109, 50812, 63515, 76218, 114327, 127030, 152436, 190545, 228654, 254060, 342981, 381090, 457308, 571635, 685962, 762180, 1028943, 1143270, 1371924, 1714905, 2057886, 2286540, 3429810, 4115772, 5144715, 6859620, 10289430, 20578860]

約数ペア:

[(1, 20578860), (2, 10289430), (3, 6859620), (4, 5144715), (5, 4115772), (6, 3429810), (9, 2286540), (10, 2057886), (12, 1714905), (15, 1371924), (18, 1143270), (20, 1028943), (27, 762180), (30, 685962), (36, 571635), (45, 457308), (54, 381090), (60, 342981), (81, 254060), (90, 228654), (108, 190545), (135, 152436), (162, 127030), (180, 114327), (270, 76218), (324, 63515), (405, 50812), (540, 38109), (810, 25406), (1620, 12703)]