21253920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44279}}^1$

素因数の和:44297

約数の個数: 48

約数和(自身を含む): 66951360

約数和(自身を除く): 45697440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44279, 88558, 132837, 177116, 221395, 265674, 354232, 442790, 531348, 664185, 708464, 885580, 1062696, 1328370, 1416928, 1771160, 2125392, 2656740, 3542320, 4250784, 5313480, 7084640, 10626960, 21253920]

約数ペア:

[(1, 21253920), (2, 10626960), (3, 7084640), (4, 5313480), (5, 4250784), (6, 3542320), (8, 2656740), (10, 2125392), (12, 1771160), (15, 1416928), (16, 1328370), (20, 1062696), (24, 885580), (30, 708464), (32, 664185), (40, 531348), (48, 442790), (60, 354232), (80, 265674), (96, 221395), (120, 177116), (160, 132837), (240, 88558), (480, 44279)]