158721505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 204768000

約数和(自身を除く): 46046495

約数列:

[1, 5, 23, 59, 115, 149, 157, 295, 745, 785, 1357, 3427, 3611, 6785, 8791, 9263, 17135, 18055, 23393, 43955, 46315, 116965, 202193, 213049, 538039, 1010965, 1065245, 1380187, 2690195, 6900935, 31744301, 158721505]

約数ペア:

[(1, 158721505), (5, 31744301), (23, 6900935), (59, 2690195), (115, 1380187), (149, 1065245), (157, 1010965), (295, 538039), (745, 213049), (785, 202193), (1357, 116965), (3427, 46315), (3611, 43955), (6785, 23393), (8791, 18055), (9263, 17135)]