20109720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1627}}^1$

素因数の和:1744

約数の個数: 64

約数和(自身を含む): 60952320

約数和(自身を除く): 40842600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1627, 2060, 2472, 3090, 3254, 4120, 4881, 6180, 6508, 8135, 9762, 12360, 13016, 16270, 19524, 24405, 32540, 39048, 48810, 65080, 97620, 167581, 195240, 335162, 502743, 670324, 837905, 1005486, 1340648, 1675810, 2010972, 2513715, 3351620, 4021944, 5027430, 6703240, 10054860, 20109720]

約数ペア:

[(1, 20109720), (2, 10054860), (3, 6703240), (4, 5027430), (5, 4021944), (6, 3351620), (8, 2513715), (10, 2010972), (12, 1675810), (15, 1340648), (20, 1005486), (24, 837905), (30, 670324), (40, 502743), (60, 335162), (103, 195240), (120, 167581), (206, 97620), (309, 65080), (412, 48810), (515, 39048), (618, 32540), (824, 24405), (1030, 19524), (1236, 16270), (1545, 13016), (1627, 12360), (2060, 9762), (2472, 8135), (3090, 6508), (3254, 6180), (4120, 4881)]