28914220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 63866880

約数和(自身を除く): 34952660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 239, 263, 460, 478, 526, 956, 1052, 1195, 1315, 2390, 2630, 4780, 5260, 5497, 6049, 10994, 12098, 21988, 24196, 27485, 30245, 54970, 60490, 62857, 109940, 120980, 125714, 251428, 314285, 628570, 1257140, 1445711, 2891422, 5782844, 7228555, 14457110, 28914220]

約数ペア:

[(1, 28914220), (2, 14457110), (4, 7228555), (5, 5782844), (10, 2891422), (20, 1445711), (23, 1257140), (46, 628570), (92, 314285), (115, 251428), (230, 125714), (239, 120980), (263, 109940), (460, 62857), (478, 60490), (526, 54970), (956, 30245), (1052, 27485), (1195, 24196), (1315, 21988), (2390, 12098), (2630, 10994), (4780, 6049), (5260, 5497)]