72980620

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{18523}}^1$

素因数の和:18729

約数の個数: 24

約数和(自身を含む): 154045584

約数和(自身を除く): 81064964

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 18523, 37046, 74092, 92615, 185230, 370460, 3649031, 7298062, 14596124, 18245155, 36490310, 72980620]

約数ペア:

[(1, 72980620), (2, 36490310), (4, 18245155), (5, 14596124), (10, 7298062), (20, 3649031), (197, 370460), (394, 185230), (788, 92615), (985, 74092), (1970, 37046), (3940, 18523)]