20068840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2683}}^1$

素因数の和:2722

約数の個数: 64

約数和(自身を含む): 52176960

約数和(自身を除く): 32108120

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2683, 3740, 5366, 7480, 10732, 13415, 21464, 26830, 29513, 45611, 53660, 59026, 91222, 107320, 118052, 147565, 182444, 228055, 236104, 295130, 364888, 456110, 501721, 590260, 912220, 1003442, 1180520, 1824440, 2006884, 2508605, 4013768, 5017210, 10034420, 20068840]

約数ペア:

[(1, 20068840), (2, 10034420), (4, 5017210), (5, 4013768), (8, 2508605), (10, 2006884), (11, 1824440), (17, 1180520), (20, 1003442), (22, 912220), (34, 590260), (40, 501721), (44, 456110), (55, 364888), (68, 295130), (85, 236104), (88, 228055), (110, 182444), (136, 147565), (170, 118052), (187, 107320), (220, 91222), (340, 59026), (374, 53660), (440, 45611), (680, 29513), (748, 26830), (935, 21464), (1496, 13415), (1870, 10732), (2683, 7480), (3740, 5366)]