18811240

素因数分解:

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

素因数の和:191

約数の個数: 96

約数和(自身を含む): 50964480

約数和(自身を除く): 32153240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 127, 140, 161, 184, 230, 254, 280, 322, 460, 508, 529, 635, 644, 805, 889, 920, 1016, 1058, 1270, 1288, 1610, 1778, 2116, 2540, 2645, 2921, 3220, 3556, 3703, 4232, 4445, 5080, 5290, 5842, 6440, 7112, 7406, 8890, 10580, 11684, 14605, 14812, 17780, 18515, 20447, 21160, 23368, 29210, 29624, 35560, 37030, 40894, 58420, 67183, 74060, 81788, 102235, 116840, 134366, 148120, 163576, 204470, 268732, 335915, 408940, 470281, 537464, 671830, 817880, 940562, 1343660, 1881124, 2351405, 2687320, 3762248, 4702810, 9405620, 18811240]

約数ペア:

[(1, 18811240), (2, 9405620), (4, 4702810), (5, 3762248), (7, 2687320), (8, 2351405), (10, 1881124), (14, 1343660), (20, 940562), (23, 817880), (28, 671830), (35, 537464), (40, 470281), (46, 408940), (56, 335915), (70, 268732), (92, 204470), (115, 163576), (127, 148120), (140, 134366), (161, 116840), (184, 102235), (230, 81788), (254, 74060), (280, 67183), (322, 58420), (460, 40894), (508, 37030), (529, 35560), (635, 29624), (644, 29210), (805, 23368), (889, 21160), (920, 20447), (1016, 18515), (1058, 17780), (1270, 14812), (1288, 14605), (1610, 11684), (1778, 10580), (2116, 8890), (2540, 7406), (2645, 7112), (2921, 6440), (3220, 5842), (3556, 5290), (3703, 5080), (4232, 4445)]