40216720

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1789}}^1$

素因数の和:2083

約数の個数: 40

約数和(自身を含む): 93889080

約数和(自身を除く): 53672360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 1789, 2248, 2810, 3578, 4496, 5620, 7156, 8945, 11240, 14312, 17890, 22480, 28624, 35780, 71560, 143120, 502709, 1005418, 2010836, 2513545, 4021672, 5027090, 8043344, 10054180, 20108360, 40216720]

約数ペア:

[(1, 40216720), (2, 20108360), (4, 10054180), (5, 8043344), (8, 5027090), (10, 4021672), (16, 2513545), (20, 2010836), (40, 1005418), (80, 502709), (281, 143120), (562, 71560), (1124, 35780), (1405, 28624), (1789, 22480), (2248, 17890), (2810, 14312), (3578, 11240), (4496, 8945), (5620, 7156)]