20296720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6857}}^1$

素因数の和:6907

約数の個数: 40

約数和(自身を含む): 48472344

約数和(自身を除く): 28175624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6857, 13714, 27428, 34285, 54856, 68570, 109712, 137140, 253709, 274280, 507418, 548560, 1014836, 1268545, 2029672, 2537090, 4059344, 5074180, 10148360, 20296720]

約数ペア:

[(1, 20296720), (2, 10148360), (4, 5074180), (5, 4059344), (8, 2537090), (10, 2029672), (16, 1268545), (20, 1014836), (37, 548560), (40, 507418), (74, 274280), (80, 253709), (148, 137140), (185, 109712), (296, 68570), (370, 54856), (592, 34285), (740, 27428), (1480, 13714), (2960, 6857)]