12851800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4943}}^1$

素因数の和:4972

約数の個数: 48

約数和(自身を含む): 32185440

約数和(自身を除く): 19333640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 4943, 9886, 19772, 24715, 39544, 49430, 64259, 98860, 123575, 128518, 197720, 247150, 257036, 321295, 494300, 514072, 642590, 988600, 1285180, 1606475, 2570360, 3212950, 6425900, 12851800]

約数ペア:

[(1, 12851800), (2, 6425900), (4, 3212950), (5, 2570360), (8, 1606475), (10, 1285180), (13, 988600), (20, 642590), (25, 514072), (26, 494300), (40, 321295), (50, 257036), (52, 247150), (65, 197720), (100, 128518), (104, 123575), (130, 98860), (200, 64259), (260, 49430), (325, 39544), (520, 24715), (650, 19772), (1300, 9886), (2600, 4943)]