81406660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4783}}^1$

素因数の和:4852

約数の個数: 48

約数和(自身を含む): 183246336

約数和(自身を除く): 101839676

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1702, 3404, 4255, 4783, 8510, 9566, 17020, 19132, 23915, 47830, 95660, 110009, 176971, 220018, 353942, 440036, 550045, 707884, 884855, 1100090, 1769710, 2200180, 3539420, 4070333, 8140666, 16281332, 20351665, 40703330, 81406660]

約数ペア:

[(1, 81406660), (2, 40703330), (4, 20351665), (5, 16281332), (10, 8140666), (20, 4070333), (23, 3539420), (37, 2200180), (46, 1769710), (74, 1100090), (92, 884855), (115, 707884), (148, 550045), (185, 440036), (230, 353942), (370, 220018), (460, 176971), (740, 110009), (851, 95660), (1702, 47830), (3404, 23915), (4255, 19132), (4783, 17020), (8510, 9566)]