291220640

素因数分解:

$2^5\times 5^1\times {\mathrm{1820129}}^1$

素因数の和:1820144

約数の個数: 24

約数和(自身を含む): 688009140

約数和(自身を除く): 396788500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1820129, 3640258, 7280516, 9100645, 14561032, 18201290, 29122064, 36402580, 58244128, 72805160, 145610320, 291220640]

約数ペア:

[(1, 291220640), (2, 145610320), (4, 72805160), (5, 58244128), (8, 36402580), (10, 29122064), (16, 18201290), (20, 14561032), (32, 9100645), (40, 7280516), (80, 3640258), (160, 1820129)]