2018014720

素因数分解:

$2^9\times 5^1\times {\mathrm{788287}}^1$

素因数の和:788310

約数の個数: 40

約数和(自身を含む): 4838511744

約数和(自身を除く): 2820497024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 788287, 1576574, 3153148, 3941435, 6306296, 7882870, 12612592, 15765740, 25225184, 31531480, 50450368, 63062960, 100900736, 126125920, 201801472, 252251840, 403602944, 504503680, 1009007360, 2018014720]

約数ペア:

[(1, 2018014720), (2, 1009007360), (4, 504503680), (5, 403602944), (8, 252251840), (10, 201801472), (16, 126125920), (20, 100900736), (32, 63062960), (40, 50450368), (64, 31531480), (80, 25225184), (128, 15765740), (160, 12612592), (256, 7882870), (320, 6306296), (512, 3941435), (640, 3153148), (1280, 1576574), (2560, 788287)]