87997480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53657}}^1$

素因数の和:53709

約数の個数: 32

約数和(自身を含む): 202827240

約数和(自身を除く): 114829760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 53657, 107314, 214628, 268285, 429256, 536570, 1073140, 2146280, 2199937, 4399874, 8799748, 10999685, 17599496, 21999370, 43998740, 87997480]

約数ペア:

[(1, 87997480), (2, 43998740), (4, 21999370), (5, 17599496), (8, 10999685), (10, 8799748), (20, 4399874), (40, 2199937), (41, 2146280), (82, 1073140), (164, 536570), (205, 429256), (328, 268285), (410, 214628), (820, 107314), (1640, 53657)]