28043225

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 42068736

約数和(自身を除く): 14025511

約数列:

[1, 5, 7, 25, 35, 37, 61, 71, 175, 185, 259, 305, 355, 427, 497, 925, 1295, 1525, 1775, 2135, 2257, 2485, 2627, 4331, 6475, 10675, 11285, 12425, 13135, 15799, 18389, 21655, 30317, 56425, 65675, 78995, 91945, 108275, 151585, 160247, 394975, 459725, 757925, 801235, 1121729, 4006175, 5608645, 28043225]

約数ペア:

[(1, 28043225), (5, 5608645), (7, 4006175), (25, 1121729), (35, 801235), (37, 757925), (61, 459725), (71, 394975), (175, 160247), (185, 151585), (259, 108275), (305, 91945), (355, 78995), (427, 65675), (497, 56425), (925, 30317), (1295, 21655), (1525, 18389), (1775, 15799), (2135, 13135), (2257, 12425), (2485, 11285), (2627, 10675), (4331, 6475)]