82172000

素因数分解:

$2^5\times 5^3\times {\mathrm{20543}}^1$

素因数の和:20568

約数の個数: 48

約数和(自身を含む): 201906432

約数和(自身を除く): 119734432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20543, 41086, 82172, 102715, 164344, 205430, 328688, 410860, 513575, 657376, 821720, 1027150, 1643440, 2054300, 2567875, 3286880, 4108600, 5135750, 8217200, 10271500, 16434400, 20543000, 41086000, 82172000]

約数ペア:

[(1, 82172000), (2, 41086000), (4, 20543000), (5, 16434400), (8, 10271500), (10, 8217200), (16, 5135750), (20, 4108600), (25, 3286880), (32, 2567875), (40, 2054300), (50, 1643440), (80, 1027150), (100, 821720), (125, 657376), (160, 513575), (200, 410860), (250, 328688), (400, 205430), (500, 164344), (800, 102715), (1000, 82172), (2000, 41086), (4000, 20543)]