7958440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 20972160

約数和(自身を除く): 13013720

約数列:

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

約数ペア:

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