87565970

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 160704000

約数和(自身を除く): 73138030

約数列:

[1, 2, 5, 10, 79, 158, 199, 395, 398, 557, 790, 995, 1114, 1990, 2785, 5570, 15721, 31442, 44003, 78605, 88006, 110843, 157210, 220015, 221686, 440030, 554215, 1108430, 8756597, 17513194, 43782985, 87565970]

約数ペア:

[(1, 87565970), (2, 43782985), (5, 17513194), (10, 8756597), (79, 1108430), (158, 554215), (199, 440030), (395, 221686), (398, 220015), (557, 157210), (790, 110843), (995, 88006), (1114, 78605), (1990, 44003), (2785, 31442), (5570, 15721)]