20817630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{739}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 54372240

約数和(自身を除く): 33554610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 313, 626, 739, 939, 1478, 1565, 1878, 2217, 2817, 3130, 3695, 4434, 4695, 5634, 6651, 7390, 9390, 11085, 13302, 14085, 22170, 28170, 33255, 66510, 231307, 462614, 693921, 1156535, 1387842, 2081763, 2313070, 3469605, 4163526, 6939210, 10408815, 20817630]

約数ペア:

[(1, 20817630), (2, 10408815), (3, 6939210), (5, 4163526), (6, 3469605), (9, 2313070), (10, 2081763), (15, 1387842), (18, 1156535), (30, 693921), (45, 462614), (90, 231307), (313, 66510), (626, 33255), (739, 28170), (939, 22170), (1478, 14085), (1565, 13302), (1878, 11085), (2217, 9390), (2817, 7390), (3130, 6651), (3695, 5634), (4434, 4695)]