128351840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42221}}^1$

素因数の和:42255

約数の個数: 48

約数和(自身を含む): 319198320

約数和(自身を除く): 190846480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 42221, 84442, 168884, 211105, 337768, 422210, 675536, 802199, 844420, 1351072, 1604398, 1688840, 3208796, 3377680, 4010995, 6417592, 6755360, 8021990, 12835184, 16043980, 25670368, 32087960, 64175920, 128351840]

約数ペア:

[(1, 128351840), (2, 64175920), (4, 32087960), (5, 25670368), (8, 16043980), (10, 12835184), (16, 8021990), (19, 6755360), (20, 6417592), (32, 4010995), (38, 3377680), (40, 3208796), (76, 1688840), (80, 1604398), (95, 1351072), (152, 844420), (160, 802199), (190, 675536), (304, 422210), (380, 337768), (608, 211105), (760, 168884), (1520, 84442), (3040, 42221)]