64803280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21893}}^1$

素因数の和:21943

約数の個数: 40

約数和(自身を含む): 154746792

約数和(自身を除く): 89943512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 21893, 43786, 87572, 109465, 175144, 218930, 350288, 437860, 810041, 875720, 1620082, 1751440, 3240164, 4050205, 6480328, 8100410, 12960656, 16200820, 32401640, 64803280]

約数ペア:

[(1, 64803280), (2, 32401640), (4, 16200820), (5, 12960656), (8, 8100410), (10, 6480328), (16, 4050205), (20, 3240164), (37, 1751440), (40, 1620082), (74, 875720), (80, 810041), (148, 437860), (185, 350288), (296, 218930), (370, 175144), (592, 109465), (740, 87572), (1480, 43786), (2960, 21893)]