66918020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1579}}^1$

素因数の和:1764

約数の個数: 48

約数和(自身を含む): 152362560

約数和(自身を除く): 85444540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 815, 1579, 1630, 2119, 3158, 3260, 4238, 6316, 7895, 8476, 10595, 15790, 20527, 21190, 31580, 41054, 42380, 82108, 102635, 205270, 257377, 410540, 514754, 1029508, 1286885, 2573770, 3345901, 5147540, 6691802, 13383604, 16729505, 33459010, 66918020]

約数ペア:

[(1, 66918020), (2, 33459010), (4, 16729505), (5, 13383604), (10, 6691802), (13, 5147540), (20, 3345901), (26, 2573770), (52, 1286885), (65, 1029508), (130, 514754), (163, 410540), (260, 257377), (326, 205270), (652, 102635), (815, 82108), (1579, 42380), (1630, 41054), (2119, 31580), (3158, 21190), (3260, 20527), (4238, 15790), (6316, 10595), (7895, 8476)]