20914360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28852040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 127, 179, 184, 230, 254, 358, 460, 508, 635, 716, 895, 920, 1016, 1270, 1432, 1790, 2540, 2921, 3580, 4117, 5080, 5842, 7160, 8234, 11684, 14605, 16468, 20585, 22733, 23368, 29210, 32936, 41170, 45466, 58420, 82340, 90932, 113665, 116840, 164680, 181864, 227330, 454660, 522859, 909320, 1045718, 2091436, 2614295, 4182872, 5228590, 10457180, 20914360]

約数ペア:

[(1, 20914360), (2, 10457180), (4, 5228590), (5, 4182872), (8, 2614295), (10, 2091436), (20, 1045718), (23, 909320), (40, 522859), (46, 454660), (92, 227330), (115, 181864), (127, 164680), (179, 116840), (184, 113665), (230, 90932), (254, 82340), (358, 58420), (460, 45466), (508, 41170), (635, 32936), (716, 29210), (895, 23368), (920, 22733), (1016, 20585), (1270, 16468), (1432, 14605), (1790, 11684), (2540, 8234), (2921, 7160), (3580, 5842), (4117, 5080)]