18588040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 25035320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 107, 172, 202, 214, 215, 344, 404, 428, 430, 505, 535, 808, 856, 860, 1010, 1070, 1720, 2020, 2140, 4040, 4280, 4343, 4601, 8686, 9202, 10807, 17372, 18404, 21614, 21715, 23005, 34744, 36808, 43228, 43430, 46010, 54035, 86456, 86860, 92020, 108070, 173720, 184040, 216140, 432280, 464701, 929402, 1858804, 2323505, 3717608, 4647010, 9294020, 18588040]

約数ペア:

[(1, 18588040), (2, 9294020), (4, 4647010), (5, 3717608), (8, 2323505), (10, 1858804), (20, 929402), (40, 464701), (43, 432280), (86, 216140), (101, 184040), (107, 173720), (172, 108070), (202, 92020), (214, 86860), (215, 86456), (344, 54035), (404, 46010), (428, 43430), (430, 43228), (505, 36808), (535, 34744), (808, 23005), (856, 21715), (860, 21614), (1010, 18404), (1070, 17372), (1720, 10807), (2020, 9202), (2140, 8686), (4040, 4601), (4280, 4343)]