28057870100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1660229}}^1$

素因数の和:1660269

約数の個数: 54

約数和(自身を含む): 65929393530

約数和(自身を除く): 37871523430

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1300, 1690, 3380, 4225, 8450, 16900, 1660229, 3320458, 6640916, 8301145, 16602290, 21582977, 33204580, 41505725, 43165954, 83011450, 86331908, 107914885, 166022900, 215829770, 280578701, 431659540, 539574425, 561157402, 1079148850, 1122314804, 1402893505, 2158297700, 2805787010, 5611574020, 7014467525, 14028935050, 28057870100]

約数ペア:

[(1, 28057870100), (2, 14028935050), (4, 7014467525), (5, 5611574020), (10, 2805787010), (13, 2158297700), (20, 1402893505), (25, 1122314804), (26, 1079148850), (50, 561157402), (52, 539574425), (65, 431659540), (100, 280578701), (130, 215829770), (169, 166022900), (260, 107914885), (325, 86331908), (338, 83011450), (650, 43165954), (676, 41505725), (845, 33204580), (1300, 21582977), (1690, 16602290), (3380, 8301145), (4225, 6640916), (8450, 3320458), (16900, 1660229)]