205067440

素因数分解:

$2^4\times 5^1\times {\mathrm{2563343}}^1$

素因数の和:2563356

約数の個数: 20

約数和(自身を含む): 476781984

約数和(自身を除く): 271714544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2563343, 5126686, 10253372, 12816715, 20506744, 25633430, 41013488, 51266860, 102533720, 205067440]

約数ペア:

[(1, 205067440), (2, 102533720), (4, 51266860), (5, 41013488), (8, 25633430), (10, 20506744), (16, 12816715), (20, 10253372), (40, 5126686), (80, 2563343)]