15890060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 18583540

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 113, 158, 178, 226, 316, 356, 395, 445, 452, 565, 790, 890, 1130, 1580, 1780, 2260, 7031, 8927, 10057, 14062, 17854, 20114, 28124, 35155, 35708, 40228, 44635, 50285, 70310, 89270, 100570, 140620, 178540, 201140, 794503, 1589006, 3178012, 3972515, 7945030, 15890060]

約数ペア:

[(1, 15890060), (2, 7945030), (4, 3972515), (5, 3178012), (10, 1589006), (20, 794503), (79, 201140), (89, 178540), (113, 140620), (158, 100570), (178, 89270), (226, 70310), (316, 50285), (356, 44635), (395, 40228), (445, 35708), (452, 35155), (565, 28124), (790, 20114), (890, 17854), (1130, 14062), (1580, 10057), (1780, 8927), (2260, 7031)]