31237180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{379}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 71053920

約数和(自身を除く): 39816740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 379, 634, 758, 1268, 1516, 1585, 1895, 3170, 3790, 4121, 4927, 6340, 7580, 8242, 9854, 16484, 19708, 20605, 24635, 41210, 49270, 82420, 98540, 120143, 240286, 480572, 600715, 1201430, 1561859, 2402860, 3123718, 6247436, 7809295, 15618590, 31237180]

約数ペア:

[(1, 31237180), (2, 15618590), (4, 7809295), (5, 6247436), (10, 3123718), (13, 2402860), (20, 1561859), (26, 1201430), (52, 600715), (65, 480572), (130, 240286), (260, 120143), (317, 98540), (379, 82420), (634, 49270), (758, 41210), (1268, 24635), (1516, 20605), (1585, 19708), (1895, 16484), (3170, 9854), (3790, 8242), (4121, 7580), (4927, 6340)]