31720300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 74620224

約数和(自身を除く): 42899924

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 170, 188, 235, 340, 397, 425, 470, 794, 799, 850, 940, 1175, 1588, 1598, 1700, 1985, 2350, 3196, 3970, 3995, 4700, 6749, 7940, 7990, 9925, 13498, 15980, 18659, 19850, 19975, 26996, 33745, 37318, 39700, 39950, 67490, 74636, 79900, 93295, 134980, 168725, 186590, 317203, 337450, 373180, 466475, 634406, 674900, 932950, 1268812, 1586015, 1865900, 3172030, 6344060, 7930075, 15860150, 31720300]

約数ペア:

[(1, 31720300), (2, 15860150), (4, 7930075), (5, 6344060), (10, 3172030), (17, 1865900), (20, 1586015), (25, 1268812), (34, 932950), (47, 674900), (50, 634406), (68, 466475), (85, 373180), (94, 337450), (100, 317203), (170, 186590), (188, 168725), (235, 134980), (340, 93295), (397, 79900), (425, 74636), (470, 67490), (794, 39950), (799, 39700), (850, 37318), (940, 33745), (1175, 26996), (1588, 19975), (1598, 19850), (1700, 18659), (1985, 15980), (2350, 13498), (3196, 9925), (3970, 7990), (3995, 7940), (4700, 6749)]