280292080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113021}}^1$

素因数の和:113065

約数の個数: 40

約数和(自身を含む): 672706944

約数和(自身を除く): 392414864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 113021, 226042, 452084, 565105, 904168, 1130210, 1808336, 2260420, 3503651, 4520840, 7007302, 9041680, 14014604, 17518255, 28029208, 35036510, 56058416, 70073020, 140146040, 280292080]

約数ペア:

[(1, 280292080), (2, 140146040), (4, 70073020), (5, 56058416), (8, 35036510), (10, 28029208), (16, 17518255), (20, 14014604), (31, 9041680), (40, 7007302), (62, 4520840), (80, 3503651), (124, 2260420), (155, 1808336), (248, 1130210), (310, 904168), (496, 565105), (620, 452084), (1240, 226042), (2480, 113021)]