69161900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 160146000

約数和(自身を除く): 90984100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 178, 190, 356, 380, 409, 445, 475, 818, 890, 950, 1636, 1691, 1780, 1900, 2045, 2225, 3382, 4090, 4450, 6764, 7771, 8180, 8455, 8900, 10225, 15542, 16910, 20450, 31084, 33820, 36401, 38855, 40900, 42275, 72802, 77710, 84550, 145604, 155420, 169100, 182005, 194275, 364010, 388550, 691619, 728020, 777100, 910025, 1383238, 1820050, 2766476, 3458095, 3640100, 6916190, 13832380, 17290475, 34580950, 69161900]

約数ペア:

[(1, 69161900), (2, 34580950), (4, 17290475), (5, 13832380), (10, 6916190), (19, 3640100), (20, 3458095), (25, 2766476), (38, 1820050), (50, 1383238), (76, 910025), (89, 777100), (95, 728020), (100, 691619), (178, 388550), (190, 364010), (356, 194275), (380, 182005), (409, 169100), (445, 155420), (475, 145604), (818, 84550), (890, 77710), (950, 72802), (1636, 42275), (1691, 40900), (1780, 38855), (1900, 36401), (2045, 33820), (2225, 31084), (3382, 20450), (4090, 16910), (4450, 15542), (6764, 10225), (7771, 8900), (8180, 8455)]