219802580

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{22567}}^1$

素因数の和:23063

約数の個数: 24

約数和(自身を含む): 462553728

約数和(自身を除く): 242751148

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 22567, 45134, 90268, 112835, 225670, 451340, 10990129, 21980258, 43960516, 54950645, 109901290, 219802580]

約数ペア:

[(1, 219802580), (2, 109901290), (4, 54950645), (5, 43960516), (10, 21980258), (20, 10990129), (487, 451340), (974, 225670), (1948, 112835), (2435, 90268), (4870, 45134), (9740, 22567)]