18927568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 42622272

約数和(自身を除く): 23694704

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 43, 44, 61, 82, 86, 88, 122, 164, 172, 176, 244, 328, 344, 451, 473, 488, 656, 671, 688, 902, 946, 976, 1342, 1763, 1804, 1892, 2501, 2623, 2684, 3526, 3608, 3784, 5002, 5246, 5368, 7052, 7216, 7568, 10004, 10492, 10736, 14104, 19393, 20008, 20984, 27511, 28208, 28853, 38786, 40016, 41968, 55022, 57706, 77572, 107543, 110044, 115412, 155144, 215086, 220088, 230824, 310288, 430172, 440176, 461648, 860344, 1182973, 1720688, 2365946, 4731892, 9463784, 18927568]

約数ペア:

[(1, 18927568), (2, 9463784), (4, 4731892), (8, 2365946), (11, 1720688), (16, 1182973), (22, 860344), (41, 461648), (43, 440176), (44, 430172), (61, 310288), (82, 230824), (86, 220088), (88, 215086), (122, 155144), (164, 115412), (172, 110044), (176, 107543), (244, 77572), (328, 57706), (344, 55022), (451, 41968), (473, 40016), (488, 38786), (656, 28853), (671, 28208), (688, 27511), (902, 20984), (946, 20008), (976, 19393), (1342, 14104), (1763, 10736), (1804, 10492), (1892, 10004), (2501, 7568), (2623, 7216), (2684, 7052), (3526, 5368), (3608, 5246), (3784, 5002)]