305125640

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{30391}}^1$

素因数の和:30653

約数の個数: 32

約数和(自身を含む): 689290560

約数和(自身を除く): 384164920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 30391, 60782, 121564, 151955, 243128, 303910, 607820, 1215640, 7628141, 15256282, 30512564, 38140705, 61025128, 76281410, 152562820, 305125640]

約数ペア:

[(1, 305125640), (2, 152562820), (4, 76281410), (5, 61025128), (8, 38140705), (10, 30512564), (20, 15256282), (40, 7628141), (251, 1215640), (502, 607820), (1004, 303910), (1255, 243128), (2008, 151955), (2510, 121564), (5020, 60782), (10040, 30391)]