20038060

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 51609600

約数和(自身を除く): 31571540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 127, 140, 161, 196, 230, 245, 254, 322, 343, 460, 490, 508, 635, 644, 686, 805, 889, 980, 1127, 1270, 1372, 1610, 1715, 1778, 2254, 2540, 2921, 3220, 3430, 3556, 4445, 4508, 5635, 5842, 6223, 6860, 7889, 8890, 11270, 11684, 12446, 14605, 15778, 17780, 20447, 22540, 24892, 29210, 31115, 31556, 39445, 40894, 43561, 58420, 62230, 78890, 81788, 87122, 102235, 124460, 143129, 157780, 174244, 204470, 217805, 286258, 408940, 435610, 572516, 715645, 871220, 1001903, 1431290, 2003806, 2862580, 4007612, 5009515, 10019030, 20038060]

約数ペア:

[(1, 20038060), (2, 10019030), (4, 5009515), (5, 4007612), (7, 2862580), (10, 2003806), (14, 1431290), (20, 1001903), (23, 871220), (28, 715645), (35, 572516), (46, 435610), (49, 408940), (70, 286258), (92, 217805), (98, 204470), (115, 174244), (127, 157780), (140, 143129), (161, 124460), (196, 102235), (230, 87122), (245, 81788), (254, 78890), (322, 62230), (343, 58420), (460, 43561), (490, 40894), (508, 39445), (635, 31556), (644, 31115), (686, 29210), (805, 24892), (889, 22540), (980, 20447), (1127, 17780), (1270, 15778), (1372, 14605), (1610, 12446), (1715, 11684), (1778, 11270), (2254, 8890), (2540, 7889), (2921, 6860), (3220, 6223), (3430, 5842), (3556, 5635), (4445, 4508)]