78339950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 72

約数和(自身を含む): 161203968

約数和(自身を除く): 82864018

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 73, 127, 130, 146, 169, 254, 325, 338, 365, 635, 650, 730, 845, 949, 1270, 1651, 1690, 1825, 1898, 3175, 3302, 3650, 4225, 4745, 6350, 8255, 8450, 9271, 9490, 12337, 16510, 18542, 21463, 23725, 24674, 41275, 42926, 46355, 47450, 61685, 82550, 92710, 107315, 120523, 123370, 214630, 231775, 241046, 308425, 463550, 536575, 602615, 616850, 1073150, 1205230, 1566799, 3013075, 3133598, 6026150, 7833995, 15667990, 39169975, 78339950]

約数ペア:

[(1, 78339950), (2, 39169975), (5, 15667990), (10, 7833995), (13, 6026150), (25, 3133598), (26, 3013075), (50, 1566799), (65, 1205230), (73, 1073150), (127, 616850), (130, 602615), (146, 536575), (169, 463550), (254, 308425), (325, 241046), (338, 231775), (365, 214630), (635, 123370), (650, 120523), (730, 107315), (845, 92710), (949, 82550), (1270, 61685), (1651, 47450), (1690, 46355), (1825, 42926), (1898, 41275), (3175, 24674), (3302, 23725), (3650, 21463), (4225, 18542), (4745, 16510), (6350, 12337), (8255, 9490), (8450, 9271)]