20176588900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^3\times {\mathrm{91837}}^1$

素因数の和:91890

約数の個数: 72

約数和(自身を含む): 47430653480

約数和(自身を除く): 27254064580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1300, 1690, 2197, 3380, 4225, 4394, 8450, 8788, 10985, 16900, 21970, 43940, 54925, 91837, 109850, 183674, 219700, 367348, 459185, 918370, 1193881, 1836740, 2295925, 2387762, 4591850, 4775524, 5969405, 9183700, 11938810, 15520453, 23877620, 29847025, 31040906, 59694050, 62081812, 77602265, 119388100, 155204530, 201765889, 310409060, 388011325, 403531778, 776022650, 807063556, 1008829445, 1552045300, 2017658890, 4035317780, 5044147225, 10088294450, 20176588900]

約数ペア:

[(1, 20176588900), (2, 10088294450), (4, 5044147225), (5, 4035317780), (10, 2017658890), (13, 1552045300), (20, 1008829445), (25, 807063556), (26, 776022650), (50, 403531778), (52, 388011325), (65, 310409060), (100, 201765889), (130, 155204530), (169, 119388100), (260, 77602265), (325, 62081812), (338, 59694050), (650, 31040906), (676, 29847025), (845, 23877620), (1300, 15520453), (1690, 11938810), (2197, 9183700), (3380, 5969405), (4225, 4775524), (4394, 4591850), (8450, 2387762), (8788, 2295925), (10985, 1836740), (16900, 1193881), (21970, 918370), (43940, 459185), (54925, 367348), (91837, 219700), (109850, 183674)]