25909000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2027

約数の個数: 64

約数和(自身を含む): 65323440

約数和(自身を除く): 39414440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 1993, 2600, 3250, 3986, 6500, 7972, 9965, 13000, 15944, 19930, 25909, 39860, 49825, 51818, 79720, 99650, 103636, 129545, 199300, 207272, 249125, 259090, 398600, 498250, 518180, 647725, 996500, 1036360, 1295450, 1993000, 2590900, 3238625, 5181800, 6477250, 12954500, 25909000]

約数ペア:

[(1, 25909000), (2, 12954500), (4, 6477250), (5, 5181800), (8, 3238625), (10, 2590900), (13, 1993000), (20, 1295450), (25, 1036360), (26, 996500), (40, 647725), (50, 518180), (52, 498250), (65, 398600), (100, 259090), (104, 249125), (125, 207272), (130, 199300), (200, 129545), (250, 103636), (260, 99650), (325, 79720), (500, 51818), (520, 49825), (650, 39860), (1000, 25909), (1300, 19930), (1625, 15944), (1993, 13000), (2600, 9965), (3250, 7972), (3986, 6500)]