138409825

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 175491000

約数和(自身を除く): 37081175

約数列:

[1, 5, 25, 73, 149, 365, 509, 745, 1825, 2545, 3725, 10877, 12725, 37157, 54385, 75841, 185785, 271925, 379205, 928925, 1896025, 5536393, 27681965, 138409825]

約数ペア:

[(1, 138409825), (5, 27681965), (25, 5536393), (73, 1896025), (149, 928925), (365, 379205), (509, 271925), (745, 185785), (1825, 75841), (2545, 54385), (3725, 37157), (10877, 12725)]