86905780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2129}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 197885520

約数和(自身を除く): 110979740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 2041, 2129, 3140, 4082, 4258, 8164, 8516, 10205, 10645, 20410, 21290, 27677, 40820, 42580, 55354, 110708, 138385, 276770, 334253, 553540, 668506, 1337012, 1671265, 3342530, 4345289, 6685060, 8690578, 17381156, 21726445, 43452890, 86905780]

約数ペア:

[(1, 86905780), (2, 43452890), (4, 21726445), (5, 17381156), (10, 8690578), (13, 6685060), (20, 4345289), (26, 3342530), (52, 1671265), (65, 1337012), (130, 668506), (157, 553540), (260, 334253), (314, 276770), (628, 138385), (785, 110708), (1570, 55354), (2041, 42580), (2129, 40820), (3140, 27677), (4082, 21290), (4258, 20410), (8164, 10645), (8516, 10205)]