20439810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{75703}}^1$

素因数の和:75719

約数の個数: 32

約数和(自身を含む): 54506880

約数和(自身を除く): 34067070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 75703, 151406, 227109, 378515, 454218, 681327, 757030, 1135545, 1362654, 2043981, 2271090, 3406635, 4087962, 6813270, 10219905, 20439810]

約数ペア:

[(1, 20439810), (2, 10219905), (3, 6813270), (5, 4087962), (6, 3406635), (9, 2271090), (10, 2043981), (15, 1362654), (18, 1135545), (27, 757030), (30, 681327), (45, 454218), (54, 378515), (90, 227109), (135, 151406), (270, 75703)]