680085040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{207343}}^1$

素因数の和:207397

約数の個数: 40

約数和(自身を含む): 1619771328

約数和(自身を除く): 939686288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 207343, 414686, 829372, 1036715, 1658744, 2073430, 3317488, 4146860, 8293720, 8501063, 16587440, 17002126, 34004252, 42505315, 68008504, 85010630, 136017008, 170021260, 340042520, 680085040]

約数ペア:

[(1, 680085040), (2, 340042520), (4, 170021260), (5, 136017008), (8, 85010630), (10, 68008504), (16, 42505315), (20, 34004252), (40, 17002126), (41, 16587440), (80, 8501063), (82, 8293720), (164, 4146860), (205, 3317488), (328, 2073430), (410, 1658744), (656, 1036715), (820, 829372), (1640, 414686), (3280, 207343)]