78264280

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{3391}}^1$

素因数の和:3979

約数の個数: 32

約数和(自身を含む): 176451840

約数和(自身を除く): 98187560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 1154, 2308, 2885, 3391, 4616, 5770, 6782, 11540, 13564, 16955, 23080, 27128, 33910, 67820, 135640, 1956607, 3913214, 7826428, 9783035, 15652856, 19566070, 39132140, 78264280]

約数ペア:

[(1, 78264280), (2, 39132140), (4, 19566070), (5, 15652856), (8, 9783035), (10, 7826428), (20, 3913214), (40, 1956607), (577, 135640), (1154, 67820), (2308, 33910), (2885, 27128), (3391, 23080), (4616, 16955), (5770, 13564), (6782, 11540)]