2151016720

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{251287}}^1$

素因数の和:251407

約数の個数: 40

約数和(自身を含む): 5047873344

約数和(自身を除く): 2896856624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 251287, 502574, 1005148, 1256435, 2010296, 2512870, 4020592, 5025740, 10051480, 20102960, 26887709, 53775418, 107550836, 134438545, 215101672, 268877090, 430203344, 537754180, 1075508360, 2151016720]

約数ペア:

[(1, 2151016720), (2, 1075508360), (4, 537754180), (5, 430203344), (8, 268877090), (10, 215101672), (16, 134438545), (20, 107550836), (40, 53775418), (80, 26887709), (107, 20102960), (214, 10051480), (428, 5025740), (535, 4020592), (856, 2512870), (1070, 2010296), (1712, 1256435), (2140, 1005148), (4280, 502574), (8560, 251287)]