87016400

素因数分解:

$2^4\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1031}}^1$

素因数の和:1260

約数の個数: 60

約数和(自身を含む): 210251424

約数和(自身を除く): 123235024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 211, 400, 422, 844, 1031, 1055, 1688, 2062, 2110, 3376, 4124, 4220, 5155, 5275, 8248, 8440, 10310, 10550, 16496, 16880, 20620, 21100, 25775, 41240, 42200, 51550, 82480, 84400, 103100, 206200, 217541, 412400, 435082, 870164, 1087705, 1740328, 2175410, 3480656, 4350820, 5438525, 8701640, 10877050, 17403280, 21754100, 43508200, 87016400]

約数ペア:

[(1, 87016400), (2, 43508200), (4, 21754100), (5, 17403280), (8, 10877050), (10, 8701640), (16, 5438525), (20, 4350820), (25, 3480656), (40, 2175410), (50, 1740328), (80, 1087705), (100, 870164), (200, 435082), (211, 412400), (400, 217541), (422, 206200), (844, 103100), (1031, 84400), (1055, 82480), (1688, 51550), (2062, 42200), (2110, 41240), (3376, 25775), (4124, 21100), (4220, 20620), (5155, 16880), (5275, 16496), (8248, 10550), (8440, 10310)]