18023215520

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{406661}}^1$

素因数の和:406953

約数の個数: 48

約数和(自身を含む): 42733669608

約数和(自身を除く): 24710454088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 8864, 11080, 22160, 44320, 406661, 813322, 1626644, 2033305, 3253288, 4066610, 6506576, 8133220, 13013152, 16266440, 32532880, 65065760, 112645097, 225290194, 450580388, 563225485, 901160776, 1126450970, 1802321552, 2252901940, 3604643104, 4505803880, 9011607760, 18023215520]

約数ペア:

[(1, 18023215520), (2, 9011607760), (4, 4505803880), (5, 3604643104), (8, 2252901940), (10, 1802321552), (16, 1126450970), (20, 901160776), (32, 563225485), (40, 450580388), (80, 225290194), (160, 112645097), (277, 65065760), (554, 32532880), (1108, 16266440), (1385, 13013152), (2216, 8133220), (2770, 6506576), (4432, 4066610), (5540, 3253288), (8864, 2033305), (11080, 1626644), (22160, 813322), (44320, 406661)]