28230125

素因数分解:

$5^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 16585555

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 125, 175, 245, 275, 385, 419, 539, 875, 1225, 1375, 1925, 2095, 2695, 2933, 4609, 6125, 9625, 10475, 13475, 14665, 20531, 23045, 32263, 52375, 67375, 73325, 102655, 115225, 161315, 225841, 366625, 513275, 576125, 806575, 1129205, 2566375, 4032875, 5646025, 28230125]

約数ペア:

[(1, 28230125), (5, 5646025), (7, 4032875), (11, 2566375), (25, 1129205), (35, 806575), (49, 576125), (55, 513275), (77, 366625), (125, 225841), (175, 161315), (245, 115225), (275, 102655), (385, 73325), (419, 67375), (539, 52375), (875, 32263), (1225, 23045), (1375, 20531), (1925, 14665), (2095, 13475), (2695, 10475), (2933, 9625), (4609, 6125)]