205917790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{15683}}^1$

素因数の和:15804

約数の個数: 32

約数和(自身を含む): 403141536

約数和(自身を除く): 197223746

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 2626, 6565, 13130, 15683, 31366, 78415, 156830, 203879, 407758, 1019395, 1583983, 2038790, 3167966, 7919915, 15839830, 20591779, 41183558, 102958895, 205917790]

約数ペア:

[(1, 205917790), (2, 102958895), (5, 41183558), (10, 20591779), (13, 15839830), (26, 7919915), (65, 3167966), (101, 2038790), (130, 1583983), (202, 1019395), (505, 407758), (1010, 203879), (1313, 156830), (2626, 78415), (6565, 31366), (13130, 15683)]