20557650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4421}}^1$

素因数の和:4467

約数の個数: 48

約数和(自身を含む): 52639488

約数和(自身を除く): 32081838

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4421, 4650, 8842, 13263, 22105, 26526, 44210, 66315, 110525, 132630, 137051, 221050, 274102, 331575, 411153, 663150, 685255, 822306, 1370510, 2055765, 3426275, 4111530, 6852550, 10278825, 20557650]

約数ペア:

[(1, 20557650), (2, 10278825), (3, 6852550), (5, 4111530), (6, 3426275), (10, 2055765), (15, 1370510), (25, 822306), (30, 685255), (31, 663150), (50, 411153), (62, 331575), (75, 274102), (93, 221050), (150, 137051), (155, 132630), (186, 110525), (310, 66315), (465, 44210), (775, 26526), (930, 22105), (1550, 13263), (2325, 8842), (4421, 4650)]