77807840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4019}}^1$

素因数の和:4056

約数の個数: 72

約数和(自身を含む): 202101480

約数和(自身を除く): 124293640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4019, 4840, 8038, 9680, 16076, 19360, 20095, 32152, 40190, 44209, 64304, 80380, 88418, 128608, 160760, 176836, 221045, 321520, 353672, 442090, 486299, 643040, 707344, 884180, 972598, 1414688, 1768360, 1945196, 2431495, 3536720, 3890392, 4862990, 7073440, 7780784, 9725980, 15561568, 19451960, 38903920, 77807840]

約数ペア:

[(1, 77807840), (2, 38903920), (4, 19451960), (5, 15561568), (8, 9725980), (10, 7780784), (11, 7073440), (16, 4862990), (20, 3890392), (22, 3536720), (32, 2431495), (40, 1945196), (44, 1768360), (55, 1414688), (80, 972598), (88, 884180), (110, 707344), (121, 643040), (160, 486299), (176, 442090), (220, 353672), (242, 321520), (352, 221045), (440, 176836), (484, 160760), (605, 128608), (880, 88418), (968, 80380), (1210, 64304), (1760, 44209), (1936, 40190), (2420, 32152), (3872, 20095), (4019, 19360), (4840, 16076), (8038, 9680)]