213860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 36

約数和(自身を含む): 489972

約数和(自身を除く): 276112

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 289, 340, 370, 578, 629, 740, 1156, 1258, 1445, 2516, 2890, 3145, 5780, 6290, 10693, 12580, 21386, 42772, 53465, 106930, 213860]

約数ペア:

[(1, 213860), (2, 106930), (4, 53465), (5, 42772), (10, 21386), (17, 12580), (20, 10693), (34, 6290), (37, 5780), (68, 3145), (74, 2890), (85, 2516), (148, 1445), (170, 1258), (185, 1156), (289, 740), (340, 629), (370, 578)]