15916880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 43342464

約数和(自身を除く): 27425584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 661, 688, 860, 1204, 1322, 1505, 1720, 2408, 2644, 3010, 3305, 3440, 4627, 4816, 5288, 6020, 6610, 9254, 10576, 12040, 13220, 18508, 23135, 24080, 26440, 28423, 37016, 46270, 52880, 56846, 74032, 92540, 113692, 142115, 185080, 198961, 227384, 284230, 370160, 397922, 454768, 568460, 795844, 994805, 1136920, 1591688, 1989610, 2273840, 3183376, 3979220, 7958440, 15916880]

約数ペア:

[(1, 15916880), (2, 7958440), (4, 3979220), (5, 3183376), (7, 2273840), (8, 1989610), (10, 1591688), (14, 1136920), (16, 994805), (20, 795844), (28, 568460), (35, 454768), (40, 397922), (43, 370160), (56, 284230), (70, 227384), (80, 198961), (86, 185080), (112, 142115), (140, 113692), (172, 92540), (215, 74032), (280, 56846), (301, 52880), (344, 46270), (430, 37016), (560, 28423), (602, 26440), (661, 24080), (688, 23135), (860, 18508), (1204, 13220), (1322, 12040), (1505, 10576), (1720, 9254), (2408, 6610), (2644, 6020), (3010, 5288), (3305, 4816), (3440, 4627)]