81424900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 188800416

約数和(自身を除く): 107375516

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 211, 227, 340, 422, 425, 454, 844, 850, 908, 1055, 1135, 1700, 2110, 2270, 3587, 3859, 4220, 4540, 5275, 5675, 7174, 7718, 10550, 11350, 14348, 15436, 17935, 19295, 21100, 22700, 35870, 38590, 47897, 71740, 77180, 89675, 95794, 96475, 179350, 191588, 192950, 239485, 358700, 385900, 478970, 814249, 957940, 1197425, 1628498, 2394850, 3256996, 4071245, 4789700, 8142490, 16284980, 20356225, 40712450, 81424900]

約数ペア:

[(1, 81424900), (2, 40712450), (4, 20356225), (5, 16284980), (10, 8142490), (17, 4789700), (20, 4071245), (25, 3256996), (34, 2394850), (50, 1628498), (68, 1197425), (85, 957940), (100, 814249), (170, 478970), (211, 385900), (227, 358700), (340, 239485), (422, 192950), (425, 191588), (454, 179350), (844, 96475), (850, 95794), (908, 89675), (1055, 77180), (1135, 71740), (1700, 47897), (2110, 38590), (2270, 35870), (3587, 22700), (3859, 21100), (4220, 19295), (4540, 17935), (5275, 15436), (5675, 14348), (7174, 11350), (7718, 10550)]