1365980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 3580416

約数和(自身を除く): 2214436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 887, 1540, 1774, 3548, 4435, 6209, 8870, 9757, 12418, 17740, 19514, 24836, 31045, 39028, 48785, 62090, 68299, 97570, 124180, 136598, 195140, 273196, 341495, 682990, 1365980]

約数ペア:

[(1, 1365980), (2, 682990), (4, 341495), (5, 273196), (7, 195140), (10, 136598), (11, 124180), (14, 97570), (20, 68299), (22, 62090), (28, 48785), (35, 39028), (44, 31045), (55, 24836), (70, 19514), (77, 17740), (110, 12418), (140, 9757), (154, 8870), (220, 6209), (308, 4435), (385, 3548), (770, 1774), (887, 1540)]