40639820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156307}}^1$

素因数の和:156329

約数の個数: 24

約数和(自身を含む): 91909104

約数和(自身を除く): 51269284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 156307, 312614, 625228, 781535, 1563070, 2031991, 3126140, 4063982, 8127964, 10159955, 20319910, 40639820]

約数ペア:

[(1, 40639820), (2, 20319910), (4, 10159955), (5, 8127964), (10, 4063982), (13, 3126140), (20, 2031991), (26, 1563070), (52, 781535), (65, 625228), (130, 312614), (260, 156307)]