78510040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 214824960

約数和(自身を除く): 136314920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 73, 92, 115, 140, 146, 161, 167, 184, 230, 280, 292, 322, 334, 365, 460, 511, 584, 644, 668, 730, 805, 835, 920, 1022, 1169, 1288, 1336, 1460, 1610, 1670, 1679, 2044, 2338, 2555, 2920, 3220, 3340, 3358, 3841, 4088, 4676, 5110, 5845, 6440, 6680, 6716, 7682, 8395, 9352, 10220, 11690, 11753, 12191, 13432, 15364, 16790, 19205, 20440, 23380, 23506, 24382, 26887, 30728, 33580, 38410, 46760, 47012, 48764, 53774, 58765, 60955, 67160, 76820, 85337, 94024, 97528, 107548, 117530, 121910, 134435, 153640, 170674, 215096, 235060, 243820, 268870, 280393, 341348, 426685, 470120, 487640, 537740, 560786, 682696, 853370, 1075480, 1121572, 1401965, 1706740, 1962751, 2243144, 2803930, 3413480, 3925502, 5607860, 7851004, 9813755, 11215720, 15702008, 19627510, 39255020, 78510040]

約数ペア:

[(1, 78510040), (2, 39255020), (4, 19627510), (5, 15702008), (7, 11215720), (8, 9813755), (10, 7851004), (14, 5607860), (20, 3925502), (23, 3413480), (28, 2803930), (35, 2243144), (40, 1962751), (46, 1706740), (56, 1401965), (70, 1121572), (73, 1075480), (92, 853370), (115, 682696), (140, 560786), (146, 537740), (161, 487640), (167, 470120), (184, 426685), (230, 341348), (280, 280393), (292, 268870), (322, 243820), (334, 235060), (365, 215096), (460, 170674), (511, 153640), (584, 134435), (644, 121910), (668, 117530), (730, 107548), (805, 97528), (835, 94024), (920, 85337), (1022, 76820), (1169, 67160), (1288, 60955), (1336, 58765), (1460, 53774), (1610, 48764), (1670, 47012), (1679, 46760), (2044, 38410), (2338, 33580), (2555, 30728), (2920, 26887), (3220, 24382), (3340, 23506), (3358, 23380), (3841, 20440), (4088, 19205), (4676, 16790), (5110, 15364), (5845, 13432), (6440, 12191), (6680, 11753), (6716, 11690), (7682, 10220), (8395, 9352)]