217778860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{837611}}^1$

素因数の和:837633

約数の個数: 24

約数和(自身を含む): 492515856

約数和(自身を除く): 274736996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 837611, 1675222, 3350444, 4188055, 8376110, 10888943, 16752220, 21777886, 43555772, 54444715, 108889430, 217778860]

約数ペア:

[(1, 217778860), (2, 108889430), (4, 54444715), (5, 43555772), (10, 21777886), (13, 16752220), (20, 10888943), (26, 8376110), (52, 4188055), (65, 3350444), (130, 1675222), (260, 837611)]