80650375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1660

約数の個数: 32

約数和(自身を含む): 111960576

約数和(自身を除く): 31310201

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 775, 1601, 1625, 2015, 3875, 8005, 10075, 20813, 40025, 49631, 50375, 104065, 200125, 248155, 520325, 645203, 1240775, 2601625, 3226015, 6203875, 16130075, 80650375]

約数ペア:

[(1, 80650375), (5, 16130075), (13, 6203875), (25, 3226015), (31, 2601625), (65, 1240775), (125, 645203), (155, 520325), (325, 248155), (403, 200125), (775, 104065), (1601, 50375), (1625, 49631), (2015, 40025), (3875, 20813), (8005, 10075)]