18899540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{317}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 24694444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 271, 317, 542, 634, 1084, 1268, 1355, 1585, 2710, 2981, 3170, 3487, 5420, 5962, 6340, 6974, 11924, 13948, 14905, 17435, 29810, 34870, 59620, 69740, 85907, 171814, 343628, 429535, 859070, 944977, 1718140, 1889954, 3779908, 4724885, 9449770, 18899540]

約数ペア:

[(1, 18899540), (2, 9449770), (4, 4724885), (5, 3779908), (10, 1889954), (11, 1718140), (20, 944977), (22, 859070), (44, 429535), (55, 343628), (110, 171814), (220, 85907), (271, 69740), (317, 59620), (542, 34870), (634, 29810), (1084, 17435), (1268, 14905), (1355, 13948), (1585, 11924), (2710, 6974), (2981, 6340), (3170, 5962), (3487, 5420)]