20119528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 45460800

約数和(自身を除く): 25341272

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 286, 344, 409, 473, 559, 572, 818, 946, 1118, 1144, 1636, 1892, 2236, 3272, 3784, 4472, 4499, 5317, 6149, 8998, 10634, 12298, 17587, 17996, 21268, 24596, 35174, 35992, 42536, 49192, 58487, 70348, 116974, 140696, 193457, 228631, 233948, 386914, 457262, 467896, 773828, 914524, 1547656, 1829048, 2514941, 5029882, 10059764, 20119528]

約数ペア:

[(1, 20119528), (2, 10059764), (4, 5029882), (8, 2514941), (11, 1829048), (13, 1547656), (22, 914524), (26, 773828), (43, 467896), (44, 457262), (52, 386914), (86, 233948), (88, 228631), (104, 193457), (143, 140696), (172, 116974), (286, 70348), (344, 58487), (409, 49192), (473, 42536), (559, 35992), (572, 35174), (818, 24596), (946, 21268), (1118, 17996), (1144, 17587), (1636, 12298), (1892, 10634), (2236, 8998), (3272, 6149), (3784, 5317), (4472, 4499)]