81246560

素因数分解:

$2^5\times 5^1\times {\mathrm{617}}^1\times {\mathrm{823}}^1$

素因数の和:1455

約数の個数: 48

約数和(自身を含む): 192489696

約数和(自身を除く): 111243136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 617, 823, 1234, 1646, 2468, 3085, 3292, 4115, 4936, 6170, 6584, 8230, 9872, 12340, 13168, 16460, 19744, 24680, 26336, 32920, 49360, 65840, 98720, 131680, 507791, 1015582, 2031164, 2538955, 4062328, 5077910, 8124656, 10155820, 16249312, 20311640, 40623280, 81246560]

約数ペア:

[(1, 81246560), (2, 40623280), (4, 20311640), (5, 16249312), (8, 10155820), (10, 8124656), (16, 5077910), (20, 4062328), (32, 2538955), (40, 2031164), (80, 1015582), (160, 507791), (617, 131680), (823, 98720), (1234, 65840), (1646, 49360), (2468, 32920), (3085, 26336), (3292, 24680), (4115, 19744), (4936, 16460), (6170, 13168), (6584, 12340), (8230, 9872)]