66485020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1987}}^1$

素因数の和:2242

約数の個数: 48

約数和(自身を含む): 160312320

約数和(自身を除く): 93827300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1673, 1987, 2390, 3346, 3974, 4780, 6692, 7948, 8365, 9935, 13909, 16730, 19870, 27818, 33460, 39740, 55636, 69545, 139090, 278180, 474893, 949786, 1899572, 2374465, 3324251, 4748930, 6648502, 9497860, 13297004, 16621255, 33242510, 66485020]

約数ペア:

[(1, 66485020), (2, 33242510), (4, 16621255), (5, 13297004), (7, 9497860), (10, 6648502), (14, 4748930), (20, 3324251), (28, 2374465), (35, 1899572), (70, 949786), (140, 474893), (239, 278180), (478, 139090), (956, 69545), (1195, 55636), (1673, 39740), (1987, 33460), (2390, 27818), (3346, 19870), (3974, 16730), (4780, 13909), (6692, 9935), (7948, 8365)]