251497885

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 319915008

約数和(自身を除く): 68417123

約数列:

[1, 5, 31, 83, 113, 155, 173, 415, 565, 865, 2573, 3503, 5363, 9379, 12865, 14359, 17515, 19549, 26815, 46895, 71795, 97745, 290749, 445129, 606019, 1453745, 1622567, 2225645, 3030095, 8112835, 50299577, 251497885]

約数ペア:

[(1, 251497885), (5, 50299577), (31, 8112835), (83, 3030095), (113, 2225645), (155, 1622567), (173, 1453745), (415, 606019), (565, 445129), (865, 290749), (2573, 97745), (3503, 71795), (5363, 46895), (9379, 26815), (12865, 19549), (14359, 17515)]