19987320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{166561}}^1$

素因数の和:166575

約数の個数: 32

約数和(自身を含む): 59962320

約数和(自身を除く): 39975000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 166561, 333122, 499683, 666244, 832805, 999366, 1332488, 1665610, 1998732, 2498415, 3331220, 3997464, 4996830, 6662440, 9993660, 19987320]

約数ペア:

[(1, 19987320), (2, 9993660), (3, 6662440), (4, 4996830), (5, 3997464), (6, 3331220), (8, 2498415), (10, 1998732), (12, 1665610), (15, 1332488), (20, 999366), (24, 832805), (30, 666244), (40, 499683), (60, 333122), (120, 166561)]