18165160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 44488080

約数和(自身を除く): 26322920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 193, 260, 362, 386, 520, 724, 772, 905, 965, 1448, 1544, 1810, 1930, 2353, 2509, 3620, 3860, 4706, 5018, 7240, 7720, 9412, 10036, 11765, 12545, 18824, 20072, 23530, 25090, 34933, 47060, 50180, 69866, 94120, 100360, 139732, 174665, 279464, 349330, 454129, 698660, 908258, 1397320, 1816516, 2270645, 3633032, 4541290, 9082580, 18165160]

約数ペア:

[(1, 18165160), (2, 9082580), (4, 4541290), (5, 3633032), (8, 2270645), (10, 1816516), (13, 1397320), (20, 908258), (26, 698660), (40, 454129), (52, 349330), (65, 279464), (104, 174665), (130, 139732), (181, 100360), (193, 94120), (260, 69866), (362, 50180), (386, 47060), (520, 34933), (724, 25090), (772, 23530), (905, 20072), (965, 18824), (1448, 12545), (1544, 11765), (1810, 10036), (1930, 9412), (2353, 7720), (2509, 7240), (3620, 5018), (3860, 4706)]