155135320

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12391}}^1$

素因数の和:12715

約数の個数: 32

約数和(自身を含む): 350197920

約数和(自身を除く): 195062600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12391, 12520, 24782, 49564, 61955, 99128, 123910, 247820, 495640, 3878383, 7756766, 15513532, 19391915, 31027064, 38783830, 77567660, 155135320]

約数ペア:

[(1, 155135320), (2, 77567660), (4, 38783830), (5, 31027064), (8, 19391915), (10, 15513532), (20, 7756766), (40, 3878383), (313, 495640), (626, 247820), (1252, 123910), (1565, 99128), (2504, 61955), (3130, 49564), (6260, 24782), (12391, 12520)]