20108820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{727}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 56504448

約数和(自身を除く): 36395628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 461, 727, 922, 1383, 1454, 1844, 2181, 2305, 2766, 2908, 3635, 4362, 4610, 5532, 6915, 7270, 8724, 9220, 10905, 13830, 14540, 21810, 27660, 43620, 335147, 670294, 1005441, 1340588, 1675735, 2010882, 3351470, 4021764, 5027205, 6702940, 10054410, 20108820]

約数ペア:

[(1, 20108820), (2, 10054410), (3, 6702940), (4, 5027205), (5, 4021764), (6, 3351470), (10, 2010882), (12, 1675735), (15, 1340588), (20, 1005441), (30, 670294), (60, 335147), (461, 43620), (727, 27660), (922, 21810), (1383, 14540), (1454, 13830), (1844, 10905), (2181, 9220), (2305, 8724), (2766, 7270), (2908, 6915), (3635, 5532), (4362, 4610)]