20090960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 49818240

約数和(自身を除く): 29727280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 179, 184, 230, 244, 305, 358, 368, 460, 488, 610, 716, 895, 920, 976, 1220, 1403, 1432, 1790, 1840, 2440, 2806, 2864, 3580, 4117, 4880, 5612, 7015, 7160, 8234, 10919, 11224, 14030, 14320, 16468, 20585, 21838, 22448, 28060, 32936, 41170, 43676, 54595, 56120, 65872, 82340, 87352, 109190, 112240, 164680, 174704, 218380, 251137, 329360, 436760, 502274, 873520, 1004548, 1255685, 2009096, 2511370, 4018192, 5022740, 10045480, 20090960]

約数ペア:

[(1, 20090960), (2, 10045480), (4, 5022740), (5, 4018192), (8, 2511370), (10, 2009096), (16, 1255685), (20, 1004548), (23, 873520), (40, 502274), (46, 436760), (61, 329360), (80, 251137), (92, 218380), (115, 174704), (122, 164680), (179, 112240), (184, 109190), (230, 87352), (244, 82340), (305, 65872), (358, 56120), (368, 54595), (460, 43676), (488, 41170), (610, 32936), (716, 28060), (895, 22448), (920, 21838), (976, 20585), (1220, 16468), (1403, 14320), (1432, 14030), (1790, 11224), (1840, 10919), (2440, 8234), (2806, 7160), (2864, 7015), (3580, 5612), (4117, 4880)]