278340400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53527}}^1$

素因数の和:53558

約数の個数: 60

約数和(自身を含む): 720165712

約数和(自身を除く): 441825312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 53527, 107054, 214108, 267635, 428216, 535270, 695851, 856432, 1070540, 1338175, 1391702, 2141080, 2676350, 2783404, 3479255, 4282160, 5352700, 5566808, 6958510, 10705400, 11133616, 13917020, 17396275, 21410800, 27834040, 34792550, 55668080, 69585100, 139170200, 278340400]

約数ペア:

[(1, 278340400), (2, 139170200), (4, 69585100), (5, 55668080), (8, 34792550), (10, 27834040), (13, 21410800), (16, 17396275), (20, 13917020), (25, 11133616), (26, 10705400), (40, 6958510), (50, 5566808), (52, 5352700), (65, 4282160), (80, 3479255), (100, 2783404), (104, 2676350), (130, 2141080), (200, 1391702), (208, 1338175), (260, 1070540), (325, 856432), (400, 695851), (520, 535270), (650, 428216), (1040, 267635), (1300, 214108), (2600, 107054), (5200, 53527)]