20985750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{3109}}^1$

素因数の和:3135

約数の個数: 64

約数和(自身を含む): 58219200

約数和(自身を除く): 37233450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 125, 135, 150, 225, 250, 270, 375, 450, 675, 750, 1125, 1350, 2250, 3109, 3375, 6218, 6750, 9327, 15545, 18654, 27981, 31090, 46635, 55962, 77725, 83943, 93270, 139905, 155450, 167886, 233175, 279810, 388625, 419715, 466350, 699525, 777250, 839430, 1165875, 1399050, 2098575, 2331750, 3497625, 4197150, 6995250, 10492875, 20985750]

約数ペア:

[(1, 20985750), (2, 10492875), (3, 6995250), (5, 4197150), (6, 3497625), (9, 2331750), (10, 2098575), (15, 1399050), (18, 1165875), (25, 839430), (27, 777250), (30, 699525), (45, 466350), (50, 419715), (54, 388625), (75, 279810), (90, 233175), (125, 167886), (135, 155450), (150, 139905), (225, 93270), (250, 83943), (270, 77725), (375, 55962), (450, 46635), (675, 31090), (750, 27981), (1125, 18654), (1350, 15545), (2250, 9327), (3109, 6750), (3375, 6218)]