20808862065

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{68113}}^1$

素因数の和:68231

約数の個数: 64

約数和(自身を含む): 38710548480

約数和(自身を除く): 17901686415

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 73, 93, 135, 155, 219, 279, 365, 465, 657, 837, 1095, 1395, 1971, 2263, 3285, 4185, 6789, 9855, 11315, 20367, 33945, 61101, 68113, 101835, 204339, 305505, 340565, 613017, 1021695, 1839051, 2111503, 3065085, 4972249, 6334509, 9195255, 10557515, 14916747, 19003527, 24861245, 31672545, 44750241, 57010581, 74583735, 95017635, 134250723, 154139719, 223751205, 285052905, 462419157, 671253615, 770698595, 1387257471, 2312095785, 4161772413, 6936287355, 20808862065]

約数ペア:

[(1, 20808862065), (3, 6936287355), (5, 4161772413), (9, 2312095785), (15, 1387257471), (27, 770698595), (31, 671253615), (45, 462419157), (73, 285052905), (93, 223751205), (135, 154139719), (155, 134250723), (219, 95017635), (279, 74583735), (365, 57010581), (465, 44750241), (657, 31672545), (837, 24861245), (1095, 19003527), (1395, 14916747), (1971, 10557515), (2263, 9195255), (3285, 6334509), (4185, 4972249), (6789, 3065085), (9855, 2111503), (11315, 1839051), (20367, 1021695), (33945, 613017), (61101, 340565), (68113, 305505), (101835, 204339)]