20680620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4363}}^1$

素因数の和:4454

約数の個数: 48

約数和(自身を含む): 58652160

約数和(自身を除く): 37971540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4363, 4740, 8726, 13089, 17452, 21815, 26178, 43630, 52356, 65445, 87260, 130890, 261780, 344677, 689354, 1034031, 1378708, 1723385, 2068062, 3446770, 4136124, 5170155, 6893540, 10340310, 20680620]

約数ペア:

[(1, 20680620), (2, 10340310), (3, 6893540), (4, 5170155), (5, 4136124), (6, 3446770), (10, 2068062), (12, 1723385), (15, 1378708), (20, 1034031), (30, 689354), (60, 344677), (79, 261780), (158, 130890), (237, 87260), (316, 65445), (395, 52356), (474, 43630), (790, 26178), (948, 21815), (1185, 17452), (1580, 13089), (2370, 8726), (4363, 4740)]