20235915

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 40405248

約数和(自身を除く): 20169333

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 227, 283, 315, 681, 849, 1135, 1415, 1589, 1981, 2043, 2547, 3405, 4245, 4767, 5943, 7945, 9905, 10215, 12735, 14301, 17829, 23835, 29715, 64241, 71505, 89145, 192723, 321205, 449687, 578169, 963615, 1349061, 2248435, 2890845, 4047183, 6745305, 20235915]

約数ペア:

[(1, 20235915), (3, 6745305), (5, 4047183), (7, 2890845), (9, 2248435), (15, 1349061), (21, 963615), (35, 578169), (45, 449687), (63, 321205), (105, 192723), (227, 89145), (283, 71505), (315, 64241), (681, 29715), (849, 23835), (1135, 17829), (1415, 14301), (1589, 12735), (1981, 10215), (2043, 9905), (2547, 7945), (3405, 5943), (4245, 4767)]