30421540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 66608640

約数和(自身を除く): 36187100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 353, 556, 620, 695, 706, 1390, 1412, 1765, 2780, 3530, 4309, 7060, 8618, 10943, 17236, 21545, 21886, 43090, 43772, 49067, 54715, 86180, 98134, 109430, 196268, 218860, 245335, 490670, 981340, 1521077, 3042154, 6084308, 7605385, 15210770, 30421540]

約数ペア:

[(1, 30421540), (2, 15210770), (4, 7605385), (5, 6084308), (10, 3042154), (20, 1521077), (31, 981340), (62, 490670), (124, 245335), (139, 218860), (155, 196268), (278, 109430), (310, 98134), (353, 86180), (556, 54715), (620, 49067), (695, 43772), (706, 43090), (1390, 21886), (1412, 21545), (1765, 17236), (2780, 10943), (3530, 8618), (4309, 7060)]