19926280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 31784120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 121, 179, 184, 220, 230, 242, 253, 358, 440, 460, 484, 506, 605, 716, 895, 920, 968, 1012, 1210, 1265, 1432, 1790, 1969, 2024, 2420, 2530, 2783, 3580, 3938, 4117, 4840, 5060, 5566, 7160, 7876, 8234, 9845, 10120, 11132, 13915, 15752, 16468, 19690, 20585, 21659, 22264, 27830, 32936, 39380, 41170, 43318, 45287, 55660, 78760, 82340, 86636, 90574, 108295, 111320, 164680, 173272, 181148, 216590, 226435, 362296, 433180, 452870, 498157, 866360, 905740, 996314, 1811480, 1992628, 2490785, 3985256, 4981570, 9963140, 19926280]

約数ペア:

[(1, 19926280), (2, 9963140), (4, 4981570), (5, 3985256), (8, 2490785), (10, 1992628), (11, 1811480), (20, 996314), (22, 905740), (23, 866360), (40, 498157), (44, 452870), (46, 433180), (55, 362296), (88, 226435), (92, 216590), (110, 181148), (115, 173272), (121, 164680), (179, 111320), (184, 108295), (220, 90574), (230, 86636), (242, 82340), (253, 78760), (358, 55660), (440, 45287), (460, 43318), (484, 41170), (506, 39380), (605, 32936), (716, 27830), (895, 22264), (920, 21659), (968, 20585), (1012, 19690), (1210, 16468), (1265, 15752), (1432, 13915), (1790, 11132), (1969, 10120), (2024, 9845), (2420, 8234), (2530, 7876), (2783, 7160), (3580, 5566), (3938, 5060), (4117, 4840)]