100220725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19181}}^1$

素因数の和:19221

約数の個数: 24

約数和(自身を含む): 142714080

約数和(自身を除く): 42493355

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 19181, 95905, 210991, 364439, 479525, 1054955, 1822195, 4008829, 5274775, 9110975, 20044145, 100220725]

約数ペア:

[(1, 100220725), (5, 20044145), (11, 9110975), (19, 5274775), (25, 4008829), (55, 1822195), (95, 1054955), (209, 479525), (275, 364439), (475, 210991), (1045, 95905), (5225, 19181)]