138279640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73553}}^1$

素因数の和:73611

約数の個数: 32

約数和(自身を含む): 317753280

約数和(自身を除く): 179473640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 73553, 147106, 294212, 367765, 588424, 735530, 1471060, 2942120, 3456991, 6913982, 13827964, 17284955, 27655928, 34569910, 69139820, 138279640]

約数ペア:

[(1, 138279640), (2, 69139820), (4, 34569910), (5, 27655928), (8, 17284955), (10, 13827964), (20, 6913982), (40, 3456991), (47, 2942120), (94, 1471060), (188, 735530), (235, 588424), (376, 367765), (470, 294212), (940, 147106), (1880, 73553)]