28799440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18947}}^1$

素因数の和:18979

約数の個数: 40

約数和(自身を含む): 70486560

約数和(自身を除く): 41687120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18947, 37894, 75788, 94735, 151576, 189470, 303152, 359993, 378940, 719986, 757880, 1439972, 1515760, 1799965, 2879944, 3599930, 5759888, 7199860, 14399720, 28799440]

約数ペア:

[(1, 28799440), (2, 14399720), (4, 7199860), (5, 5759888), (8, 3599930), (10, 2879944), (16, 1799965), (19, 1515760), (20, 1439972), (38, 757880), (40, 719986), (76, 378940), (80, 359993), (95, 303152), (152, 189470), (190, 151576), (304, 94735), (380, 75788), (760, 37894), (1520, 18947)]