71619980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{12391}}^1$

素因数の和:12434

約数の個数: 36

約数和(自身を含む): 159782448

約数和(自身を除く): 88162468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 12391, 24782, 49564, 61955, 123910, 210647, 247820, 421294, 842588, 1053235, 2106470, 3580999, 4212940, 7161998, 14323996, 17904995, 35809990, 71619980]

約数ペア:

[(1, 71619980), (2, 35809990), (4, 17904995), (5, 14323996), (10, 7161998), (17, 4212940), (20, 3580999), (34, 2106470), (68, 1053235), (85, 842588), (170, 421294), (289, 247820), (340, 210647), (578, 123910), (1156, 61955), (1445, 49564), (2890, 24782), (5780, 12391)]