740320

素因数分解:

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

素因数の和:683

約数の個数: 48

約数和(自身を含む): 2001888

約数和(自身を除く): 1261568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 661, 1120, 1322, 2644, 3305, 4627, 5288, 6610, 9254, 10576, 13220, 18508, 21152, 23135, 26440, 37016, 46270, 52880, 74032, 92540, 105760, 148064, 185080, 370160, 740320]

約数ペア:

[(1, 740320), (2, 370160), (4, 185080), (5, 148064), (7, 105760), (8, 92540), (10, 74032), (14, 52880), (16, 46270), (20, 37016), (28, 26440), (32, 23135), (35, 21152), (40, 18508), (56, 13220), (70, 10576), (80, 9254), (112, 6610), (140, 5288), (160, 4627), (224, 3305), (280, 2644), (560, 1322), (661, 1120)]