20069560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{313}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 51998400

約数和(自身を除く): 31928840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 313, 458, 626, 916, 1145, 1252, 1565, 1603, 1832, 2191, 2290, 2504, 3130, 3206, 4382, 4580, 6260, 6412, 8015, 8764, 9160, 10955, 12520, 12824, 16030, 17528, 21910, 32060, 43820, 64120, 71677, 87640, 143354, 286708, 358385, 501739, 573416, 716770, 1003478, 1433540, 2006956, 2508695, 2867080, 4013912, 5017390, 10034780, 20069560]

約数ペア:

[(1, 20069560), (2, 10034780), (4, 5017390), (5, 4013912), (7, 2867080), (8, 2508695), (10, 2006956), (14, 1433540), (20, 1003478), (28, 716770), (35, 573416), (40, 501739), (56, 358385), (70, 286708), (140, 143354), (229, 87640), (280, 71677), (313, 64120), (458, 43820), (626, 32060), (916, 21910), (1145, 17528), (1252, 16030), (1565, 12824), (1603, 12520), (1832, 10955), (2191, 9160), (2290, 8764), (2504, 8015), (3130, 6412), (3206, 6260), (4382, 4580)]