20149965856

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{5431}}^1$

素因数の和:5606

約数の個数: 72

約数和(自身を含む): 41994009792

約数和(自身を除く): 21844043936

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 71, 92, 142, 184, 284, 368, 568, 736, 1136, 1633, 2272, 3266, 5041, 5431, 6532, 10082, 10862, 13064, 20164, 21724, 26128, 40328, 43448, 52256, 80656, 86896, 115943, 124913, 161312, 173792, 231886, 249826, 385601, 463772, 499652, 771202, 927544, 999304, 1542404, 1855088, 1998608, 3084808, 3710176, 3997216, 6169616, 8868823, 12339232, 17737646, 27377671, 35475292, 54755342, 70950584, 109510684, 141901168, 219021368, 283802336, 438042736, 629686433, 876085472, 1259372866, 2518745732, 5037491464, 10074982928, 20149965856]

約数ペア:

[(1, 20149965856), (2, 10074982928), (4, 5037491464), (8, 2518745732), (16, 1259372866), (23, 876085472), (32, 629686433), (46, 438042736), (71, 283802336), (92, 219021368), (142, 141901168), (184, 109510684), (284, 70950584), (368, 54755342), (568, 35475292), (736, 27377671), (1136, 17737646), (1633, 12339232), (2272, 8868823), (3266, 6169616), (5041, 3997216), (5431, 3710176), (6532, 3084808), (10082, 1998608), (10862, 1855088), (13064, 1542404), (20164, 999304), (21724, 927544), (26128, 771202), (40328, 499652), (43448, 463772), (52256, 385601), (80656, 249826), (86896, 231886), (115943, 173792), (124913, 161312)]