20189802040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{26861}}^1$

素因数の和:26957

約数の個数: 128

約数和(自身を含む): 51059289600

約数和(自身を除く): 30869487560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 43, 46, 76, 86, 92, 95, 115, 152, 172, 184, 190, 215, 230, 344, 380, 430, 437, 460, 760, 817, 860, 874, 920, 989, 1634, 1720, 1748, 1978, 2185, 3268, 3496, 3956, 4085, 4370, 4945, 6536, 7912, 8170, 8740, 9890, 16340, 17480, 18791, 19780, 26861, 32680, 37582, 39560, 53722, 75164, 93955, 107444, 134305, 150328, 187910, 214888, 268610, 375820, 510359, 537220, 617803, 751640, 1020718, 1074440, 1155023, 1235606, 2041436, 2310046, 2471212, 2551795, 3089015, 4082872, 4620092, 4942424, 5103590, 5775115, 6178030, 9240184, 10207180, 11550230, 11738257, 12356060, 20414360, 21945437, 23100460, 23476514, 24712120, 26565529, 43890874, 46200920, 46953028, 53131058, 58691285, 87781748, 93906056, 106262116, 109727185, 117382570, 132827645, 175563496, 212524232, 219454370, 234765140, 265655290, 438908740, 469530280, 504745051, 531310580, 877817480, 1009490102, 1062621160, 2018980204, 2523725255, 4037960408, 5047450510, 10094901020, 20189802040]

約数ペア:

[(1, 20189802040), (2, 10094901020), (4, 5047450510), (5, 4037960408), (8, 2523725255), (10, 2018980204), (19, 1062621160), (20, 1009490102), (23, 877817480), (38, 531310580), (40, 504745051), (43, 469530280), (46, 438908740), (76, 265655290), (86, 234765140), (92, 219454370), (95, 212524232), (115, 175563496), (152, 132827645), (172, 117382570), (184, 109727185), (190, 106262116), (215, 93906056), (230, 87781748), (344, 58691285), (380, 53131058), (430, 46953028), (437, 46200920), (460, 43890874), (760, 26565529), (817, 24712120), (860, 23476514), (874, 23100460), (920, 21945437), (989, 20414360), (1634, 12356060), (1720, 11738257), (1748, 11550230), (1978, 10207180), (2185, 9240184), (3268, 6178030), (3496, 5775115), (3956, 5103590), (4085, 4942424), (4370, 4620092), (4945, 4082872), (6536, 3089015), (7912, 2551795), (8170, 2471212), (8740, 2310046), (9890, 2041436), (16340, 1235606), (17480, 1155023), (18791, 1074440), (19780, 1020718), (26861, 751640), (32680, 617803), (37582, 537220), (39560, 510359), (53722, 375820), (75164, 268610), (93955, 214888), (107444, 187910), (134305, 150328)]