321779900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1949}}^1$

素因数の和:2103

約数の個数: 72

約数和(自身を含む): 758284800

約数和(自身を除く): 436504900

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 127, 130, 254, 260, 325, 508, 635, 650, 1270, 1300, 1651, 1949, 2540, 3175, 3302, 3898, 6350, 6604, 7796, 8255, 9745, 12700, 16510, 19490, 25337, 33020, 38980, 41275, 48725, 50674, 82550, 97450, 101348, 126685, 165100, 194900, 247523, 253370, 495046, 506740, 633425, 990092, 1237615, 1266850, 2475230, 2533700, 3217799, 4950460, 6188075, 6435598, 12376150, 12871196, 16088995, 24752300, 32177990, 64355980, 80444975, 160889950, 321779900]

約数ペア:

[(1, 321779900), (2, 160889950), (4, 80444975), (5, 64355980), (10, 32177990), (13, 24752300), (20, 16088995), (25, 12871196), (26, 12376150), (50, 6435598), (52, 6188075), (65, 4950460), (100, 3217799), (127, 2533700), (130, 2475230), (254, 1266850), (260, 1237615), (325, 990092), (508, 633425), (635, 506740), (650, 495046), (1270, 253370), (1300, 247523), (1651, 194900), (1949, 165100), (2540, 126685), (3175, 101348), (3302, 97450), (3898, 82550), (6350, 50674), (6604, 48725), (7796, 41275), (8255, 38980), (9745, 33020), (12700, 25337), (16510, 19490)]