20257886375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{2063}}^1\times {\mathrm{4621}}^1$

素因数の和:6716

約数の個数: 32

約数和(自身を含む): 26787780864

約数和(自身を除く): 6529894489

約数列:

[1, 5, 17, 25, 85, 125, 425, 2063, 2125, 4621, 10315, 23105, 35071, 51575, 78557, 115525, 175355, 257875, 392785, 577625, 876775, 1963925, 4383875, 9533123, 9819625, 47665615, 162063091, 238328075, 810315455, 1191640375, 4051577275, 20257886375]

約数ペア:

[(1, 20257886375), (5, 4051577275), (17, 1191640375), (25, 810315455), (85, 238328075), (125, 162063091), (425, 47665615), (2063, 9819625), (2125, 9533123), (4621, 4383875), (10315, 1963925), (23105, 876775), (35071, 577625), (51575, 392785), (78557, 257875), (115525, 175355)]