204516640

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2797}}^1$

素因数の和:3269

約数の個数: 48

約数和(自身を含む): 484400952

約数和(自身を除く): 279884312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 914, 1828, 2285, 2797, 3656, 4570, 5594, 7312, 9140, 11188, 13985, 14624, 18280, 22376, 27970, 36560, 44752, 55940, 73120, 89504, 111880, 223760, 447520, 1278229, 2556458, 5112916, 6391145, 10225832, 12782290, 20451664, 25564580, 40903328, 51129160, 102258320, 204516640]

約数ペア:

[(1, 204516640), (2, 102258320), (4, 51129160), (5, 40903328), (8, 25564580), (10, 20451664), (16, 12782290), (20, 10225832), (32, 6391145), (40, 5112916), (80, 2556458), (160, 1278229), (457, 447520), (914, 223760), (1828, 111880), (2285, 89504), (2797, 73120), (3656, 55940), (4570, 44752), (5594, 36560), (7312, 27970), (9140, 22376), (11188, 18280), (13985, 14624)]