127977400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{15607}}^1$

素因数の和:15664

約数の個数: 48

約数和(自身を含む): 304824240

約数和(自身を除く): 176846840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 15607, 31214, 62428, 78035, 124856, 156070, 312140, 390175, 624280, 639887, 780350, 1279774, 1560700, 2559548, 3121400, 3199435, 5119096, 6398870, 12797740, 15997175, 25595480, 31994350, 63988700, 127977400]

約数ペア:

[(1, 127977400), (2, 63988700), (4, 31994350), (5, 25595480), (8, 15997175), (10, 12797740), (20, 6398870), (25, 5119096), (40, 3199435), (41, 3121400), (50, 2559548), (82, 1560700), (100, 1279774), (164, 780350), (200, 639887), (205, 624280), (328, 390175), (410, 312140), (820, 156070), (1025, 124856), (1640, 78035), (2050, 62428), (4100, 31214), (8200, 15607)]