20145195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2063}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 41213952

約数和(自身を除く): 21068757

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2063, 3255, 6189, 9765, 10315, 14441, 18567, 30945, 43323, 63953, 72205, 92835, 129969, 191859, 216615, 319765, 447671, 575577, 649845, 959295, 1343013, 2238355, 2877885, 4029039, 6715065, 20145195]

約数ペア:

[(1, 20145195), (3, 6715065), (5, 4029039), (7, 2877885), (9, 2238355), (15, 1343013), (21, 959295), (31, 649845), (35, 575577), (45, 447671), (63, 319765), (93, 216615), (105, 191859), (155, 129969), (217, 92835), (279, 72205), (315, 63953), (465, 43323), (651, 30945), (1085, 18567), (1395, 14441), (1953, 10315), (2063, 9765), (3255, 6189)]