20195360

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1117}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 48176856

約数和(自身を除く): 27981496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1117, 1130, 1808, 2234, 2260, 3616, 4468, 4520, 5585, 8936, 9040, 11170, 17872, 18080, 22340, 35744, 44680, 89360, 126221, 178720, 252442, 504884, 631105, 1009768, 1262210, 2019536, 2524420, 4039072, 5048840, 10097680, 20195360]

約数ペア:

[(1, 20195360), (2, 10097680), (4, 5048840), (5, 4039072), (8, 2524420), (10, 2019536), (16, 1262210), (20, 1009768), (32, 631105), (40, 504884), (80, 252442), (113, 178720), (160, 126221), (226, 89360), (452, 44680), (565, 35744), (904, 22340), (1117, 18080), (1130, 17872), (1808, 11170), (2234, 9040), (2260, 8936), (3616, 5585), (4468, 4520)]