25687240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{463}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 61804800

約数和(自身を除く): 36117560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 365, 380, 463, 584, 730, 760, 926, 1387, 1460, 1852, 2315, 2774, 2920, 3704, 4630, 5548, 6935, 8797, 9260, 11096, 13870, 17594, 18520, 27740, 33799, 35188, 43985, 55480, 67598, 70376, 87970, 135196, 168995, 175940, 270392, 337990, 351880, 642181, 675980, 1284362, 1351960, 2568724, 3210905, 5137448, 6421810, 12843620, 25687240]

約数ペア:

[(1, 25687240), (2, 12843620), (4, 6421810), (5, 5137448), (8, 3210905), (10, 2568724), (19, 1351960), (20, 1284362), (38, 675980), (40, 642181), (73, 351880), (76, 337990), (95, 270392), (146, 175940), (152, 168995), (190, 135196), (292, 87970), (365, 70376), (380, 67598), (463, 55480), (584, 43985), (730, 35188), (760, 33799), (926, 27740), (1387, 18520), (1460, 17594), (1852, 13870), (2315, 11096), (2774, 9260), (2920, 8797), (3704, 6935), (4630, 5548)]