20244488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 23784952

約数列:

[1, 2, 4, 8, 11, 22, 31, 41, 44, 62, 82, 88, 124, 164, 181, 248, 328, 341, 362, 451, 682, 724, 902, 1271, 1364, 1448, 1804, 1991, 2542, 2728, 3608, 3982, 5084, 5611, 7421, 7964, 10168, 11222, 13981, 14842, 15928, 22444, 27962, 29684, 44888, 55924, 59368, 61721, 81631, 111848, 123442, 163262, 230051, 246884, 326524, 460102, 493768, 653048, 920204, 1840408, 2530561, 5061122, 10122244, 20244488]

約数ペア:

[(1, 20244488), (2, 10122244), (4, 5061122), (8, 2530561), (11, 1840408), (22, 920204), (31, 653048), (41, 493768), (44, 460102), (62, 326524), (82, 246884), (88, 230051), (124, 163262), (164, 123442), (181, 111848), (248, 81631), (328, 61721), (341, 59368), (362, 55924), (451, 44888), (682, 29684), (724, 27962), (902, 22444), (1271, 15928), (1364, 14842), (1448, 13981), (1804, 11222), (1991, 10168), (2542, 7964), (2728, 7421), (3608, 5611), (3982, 5084)]