20164737555

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{336163}}^1$

素因数の和:336248

約数の個数: 48

約数和(自身を含む): 36918875136

約数和(自身を除く): 16754137581

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 387, 465, 645, 1333, 1395, 1935, 3999, 6665, 11997, 19995, 59985, 336163, 1008489, 1680815, 3025467, 5042445, 10421053, 14455009, 15127335, 31263159, 43365027, 52105265, 72275045, 93789477, 130095081, 156315795, 216825135, 448105279, 468947385, 650475405, 1344315837, 2240526395, 4032947511, 6721579185, 20164737555]

約数ペア:

[(1, 20164737555), (3, 6721579185), (5, 4032947511), (9, 2240526395), (15, 1344315837), (31, 650475405), (43, 468947385), (45, 448105279), (93, 216825135), (129, 156315795), (155, 130095081), (215, 93789477), (279, 72275045), (387, 52105265), (465, 43365027), (645, 31263159), (1333, 15127335), (1395, 14455009), (1935, 10421053), (3999, 5042445), (6665, 3025467), (11997, 1680815), (19995, 1008489), (59985, 336163)]