81680950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2371}}^1$

素因数の和:2449

約数の個数: 48

約数和(自身を含む): 166770576

約数和(自身を除く): 85089626

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 130, 265, 325, 530, 650, 689, 1325, 1378, 2371, 2650, 3445, 4742, 6890, 11855, 17225, 23710, 30823, 34450, 59275, 61646, 118550, 125663, 154115, 251326, 308230, 628315, 770575, 1256630, 1541150, 1633619, 3141575, 3267238, 6283150, 8168095, 16336190, 40840475, 81680950]

約数ペア:

[(1, 81680950), (2, 40840475), (5, 16336190), (10, 8168095), (13, 6283150), (25, 3267238), (26, 3141575), (50, 1633619), (53, 1541150), (65, 1256630), (106, 770575), (130, 628315), (265, 308230), (325, 251326), (530, 154115), (650, 125663), (689, 118550), (1325, 61646), (1378, 59275), (2371, 34450), (2650, 30823), (3445, 23710), (4742, 17225), (6890, 11855)]