5140720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4943}}^1$

素因数の和:4969

約数の個数: 40

約数和(自身を含む): 12874176

約数和(自身を除く): 7733456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 4943, 9886, 19772, 24715, 39544, 49430, 64259, 79088, 98860, 128518, 197720, 257036, 321295, 395440, 514072, 642590, 1028144, 1285180, 2570360, 5140720]

約数ペア:

[(1, 5140720), (2, 2570360), (4, 1285180), (5, 1028144), (8, 642590), (10, 514072), (13, 395440), (16, 321295), (20, 257036), (26, 197720), (40, 128518), (52, 98860), (65, 79088), (80, 64259), (104, 49430), (130, 39544), (208, 24715), (260, 19772), (520, 9886), (1040, 4943)]