40181920

素因数分解:

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

素因数の和:278

約数の個数: 96

約数和(自身を含む): 101243520

約数和(自身を除く): 61061600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 61, 80, 92, 115, 122, 160, 179, 184, 230, 244, 305, 358, 368, 460, 488, 610, 716, 736, 895, 920, 976, 1220, 1403, 1432, 1790, 1840, 1952, 2440, 2806, 2864, 3580, 3680, 4117, 4880, 5612, 5728, 7015, 7160, 8234, 9760, 10919, 11224, 14030, 14320, 16468, 20585, 21838, 22448, 28060, 28640, 32936, 41170, 43676, 44896, 54595, 56120, 65872, 82340, 87352, 109190, 112240, 131744, 164680, 174704, 218380, 224480, 251137, 329360, 349408, 436760, 502274, 658720, 873520, 1004548, 1255685, 1747040, 2009096, 2511370, 4018192, 5022740, 8036384, 10045480, 20090960, 40181920]

約数ペア:

[(1, 40181920), (2, 20090960), (4, 10045480), (5, 8036384), (8, 5022740), (10, 4018192), (16, 2511370), (20, 2009096), (23, 1747040), (32, 1255685), (40, 1004548), (46, 873520), (61, 658720), (80, 502274), (92, 436760), (115, 349408), (122, 329360), (160, 251137), (179, 224480), (184, 218380), (230, 174704), (244, 164680), (305, 131744), (358, 112240), (368, 109190), (460, 87352), (488, 82340), (610, 65872), (716, 56120), (736, 54595), (895, 44896), (920, 43676), (976, 41170), (1220, 32936), (1403, 28640), (1432, 28060), (1790, 22448), (1840, 21838), (1952, 20585), (2440, 16468), (2806, 14320), (2864, 14030), (3580, 11224), (3680, 10919), (4117, 9760), (4880, 8234), (5612, 7160), (5728, 7015)]