208885360

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{16631}}^1$

素因数の和:16801

約数の個数: 40

約数和(自身を含む): 488781216

約数和(自身を除く): 279895856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 16631, 33262, 66524, 83155, 133048, 166310, 266096, 332620, 665240, 1330480, 2611067, 5222134, 10444268, 13055335, 20888536, 26110670, 41777072, 52221340, 104442680, 208885360]

約数ペア:

[(1, 208885360), (2, 104442680), (4, 52221340), (5, 41777072), (8, 26110670), (10, 20888536), (16, 13055335), (20, 10444268), (40, 5222134), (80, 2611067), (157, 1330480), (314, 665240), (628, 332620), (785, 266096), (1256, 166310), (1570, 133048), (2512, 83155), (3140, 66524), (6280, 33262), (12560, 16631)]