2811260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 6320160

約数和(自身を除く): 3508900

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 131, 145, 148, 185, 262, 290, 370, 524, 580, 655, 740, 1073, 1310, 2146, 2620, 3799, 4292, 4847, 5365, 7598, 9694, 10730, 15196, 18995, 19388, 21460, 24235, 37990, 48470, 75980, 96940, 140563, 281126, 562252, 702815, 1405630, 2811260]

約数ペア:

[(1, 2811260), (2, 1405630), (4, 702815), (5, 562252), (10, 281126), (20, 140563), (29, 96940), (37, 75980), (58, 48470), (74, 37990), (116, 24235), (131, 21460), (145, 19388), (148, 18995), (185, 15196), (262, 10730), (290, 9694), (370, 7598), (524, 5365), (580, 4847), (655, 4292), (740, 3799), (1073, 2620), (1310, 2146)]