18703180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 40715136

約数和(自身を除く): 22011956

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 101, 188, 197, 202, 235, 394, 404, 470, 505, 788, 940, 985, 1010, 1970, 2020, 3940, 4747, 9259, 9494, 18518, 18988, 19897, 23735, 37036, 39794, 46295, 47470, 79588, 92590, 94940, 99485, 185180, 198970, 397940, 935159, 1870318, 3740636, 4675795, 9351590, 18703180]

約数ペア:

[(1, 18703180), (2, 9351590), (4, 4675795), (5, 3740636), (10, 1870318), (20, 935159), (47, 397940), (94, 198970), (101, 185180), (188, 99485), (197, 94940), (202, 92590), (235, 79588), (394, 47470), (404, 46295), (470, 39794), (505, 37036), (788, 23735), (940, 19897), (985, 18988), (1010, 18518), (1970, 9494), (2020, 9259), (3940, 4747)]