20618810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 39042432

約数和(自身を除く): 18423622

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 571, 785, 1142, 1570, 2855, 3611, 5710, 7222, 13133, 18055, 26266, 36110, 65665, 89647, 131330, 179294, 448235, 896470, 2061881, 4123762, 10309405, 20618810]

約数ペア:

[(1, 20618810), (2, 10309405), (5, 4123762), (10, 2061881), (23, 896470), (46, 448235), (115, 179294), (157, 131330), (230, 89647), (314, 65665), (571, 36110), (785, 26266), (1142, 18055), (1570, 13133), (2855, 7222), (3611, 5710)]