28628240

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{797}}^1$

素因数の和:1259

約数の個数: 40

約数和(自身を含む): 66792600

約数和(自身を除く): 38164360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 797, 898, 1594, 1796, 2245, 3188, 3592, 3985, 4490, 6376, 7184, 7970, 8980, 12752, 15940, 17960, 31880, 35920, 63760, 357853, 715706, 1431412, 1789265, 2862824, 3578530, 5725648, 7157060, 14314120, 28628240]

約数ペア:

[(1, 28628240), (2, 14314120), (4, 7157060), (5, 5725648), (8, 3578530), (10, 2862824), (16, 1789265), (20, 1431412), (40, 715706), (80, 357853), (449, 63760), (797, 35920), (898, 31880), (1594, 17960), (1796, 15940), (2245, 12752), (3188, 8980), (3592, 7970), (3985, 7184), (4490, 6376)]