78959840

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2213}}^1$

素因数の和:2451

約数の個数: 48

約数和(自身を含む): 187463808

約数和(自身を除く): 108503968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 892, 1115, 1784, 2213, 2230, 3568, 4426, 4460, 7136, 8852, 8920, 11065, 17704, 17840, 22130, 35408, 35680, 44260, 70816, 88520, 177040, 354080, 493499, 986998, 1973996, 2467495, 3947992, 4934990, 7895984, 9869980, 15791968, 19739960, 39479920, 78959840]

約数ペア:

[(1, 78959840), (2, 39479920), (4, 19739960), (5, 15791968), (8, 9869980), (10, 7895984), (16, 4934990), (20, 3947992), (32, 2467495), (40, 1973996), (80, 986998), (160, 493499), (223, 354080), (446, 177040), (892, 88520), (1115, 70816), (1784, 44260), (2213, 35680), (2230, 35408), (3568, 22130), (4426, 17840), (4460, 17704), (7136, 11065), (8852, 8920)]