128734025

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5531}}^1$

素因数の和:5574

約数の個数: 36

約数和(自身を含む): 195500880

約数和(自身を除く): 66766855

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 3325, 4655, 5531, 23275, 27655, 38717, 105089, 138275, 193585, 271019, 525445, 735623, 967925, 1355095, 2627225, 3678115, 5149361, 6775475, 18390575, 25746805, 128734025]

約数ペア:

[(1, 128734025), (5, 25746805), (7, 18390575), (19, 6775475), (25, 5149361), (35, 3678115), (49, 2627225), (95, 1355095), (133, 967925), (175, 735623), (245, 525445), (475, 271019), (665, 193585), (931, 138275), (1225, 105089), (3325, 38717), (4655, 27655), (5531, 23275)]