1390257875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7351}}^1$

素因数の和:7472

約数の個数: 32

約数和(自身を含む): 1857997440

約数和(自身を除く): 467739565

約数列:

[1, 5, 17, 25, 85, 89, 125, 425, 445, 1513, 2125, 2225, 7351, 7565, 11125, 36755, 37825, 124967, 183775, 189125, 624835, 654239, 918875, 3124175, 3271195, 11122063, 15620875, 16355975, 55610315, 81779875, 278051575, 1390257875]

約数ペア:

[(1, 1390257875), (5, 278051575), (17, 81779875), (25, 55610315), (85, 16355975), (89, 15620875), (125, 11122063), (425, 3271195), (445, 3124175), (1513, 918875), (2125, 654239), (2225, 624835), (7351, 189125), (7565, 183775), (11125, 124967), (36755, 37825)]