20145264780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{845729}}^1$

素因数の和:846138

約数の個数: 48

約数和(自身を含む): 56548890720

約数和(自身を除く): 36403625940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 397, 794, 1191, 1588, 1985, 2382, 3970, 4764, 5955, 7940, 11910, 23820, 845729, 1691458, 2537187, 3382916, 4228645, 5074374, 8457290, 10148748, 12685935, 16914580, 25371870, 50743740, 335754413, 671508826, 1007263239, 1343017652, 1678772065, 2014526478, 3357544130, 4029052956, 5036316195, 6715088260, 10072632390, 20145264780]

約数ペア:

[(1, 20145264780), (2, 10072632390), (3, 6715088260), (4, 5036316195), (5, 4029052956), (6, 3357544130), (10, 2014526478), (12, 1678772065), (15, 1343017652), (20, 1007263239), (30, 671508826), (60, 335754413), (397, 50743740), (794, 25371870), (1191, 16914580), (1588, 12685935), (1985, 10148748), (2382, 8457290), (3970, 5074374), (4764, 4228645), (5955, 3382916), (7940, 2537187), (11910, 1691458), (23820, 845729)]