81186880

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6857}}^1$

素因数の和:6911

約数の個数: 56

約数和(自身を含む): 198580248

約数和(自身を除く): 117393368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 2368, 2960, 5920, 6857, 11840, 13714, 27428, 34285, 54856, 68570, 109712, 137140, 219424, 253709, 274280, 438848, 507418, 548560, 1014836, 1097120, 1268545, 2029672, 2194240, 2537090, 4059344, 5074180, 8118688, 10148360, 16237376, 20296720, 40593440, 81186880]

約数ペア:

[(1, 81186880), (2, 40593440), (4, 20296720), (5, 16237376), (8, 10148360), (10, 8118688), (16, 5074180), (20, 4059344), (32, 2537090), (37, 2194240), (40, 2029672), (64, 1268545), (74, 1097120), (80, 1014836), (148, 548560), (160, 507418), (185, 438848), (296, 274280), (320, 253709), (370, 219424), (592, 137140), (740, 109712), (1184, 68570), (1480, 54856), (2368, 34285), (2960, 27428), (5920, 13714), (6857, 11840)]