78465420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1723}}^1$

素因数の和:1772

約数の個数: 144

約数和(自身を含む): 271095552

約数和(自身を除く): 192630132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 414, 460, 495, 506, 660, 690, 759, 828, 990, 1012, 1035, 1265, 1380, 1518, 1723, 1980, 2070, 2277, 2530, 3036, 3446, 3795, 4140, 4554, 5060, 5169, 6892, 7590, 8615, 9108, 10338, 11385, 15180, 15507, 17230, 18953, 20676, 22770, 25845, 31014, 34460, 37906, 39629, 45540, 51690, 56859, 62028, 75812, 77535, 79258, 94765, 103380, 113718, 118887, 155070, 158516, 170577, 189530, 198145, 227436, 237774, 284295, 310140, 341154, 356661, 379060, 396290, 435919, 475548, 568590, 594435, 682308, 713322, 792580, 852885, 871838, 1137180, 1188870, 1307757, 1426644, 1705770, 1743676, 1783305, 2179595, 2377740, 2615514, 3411540, 3566610, 3923271, 4359190, 5231028, 6538785, 7133220, 7846542, 8718380, 13077570, 15693084, 19616355, 26155140, 39232710, 78465420]

約数ペア:

[(1, 78465420), (2, 39232710), (3, 26155140), (4, 19616355), (5, 15693084), (6, 13077570), (9, 8718380), (10, 7846542), (11, 7133220), (12, 6538785), (15, 5231028), (18, 4359190), (20, 3923271), (22, 3566610), (23, 3411540), (30, 2615514), (33, 2377740), (36, 2179595), (44, 1783305), (45, 1743676), (46, 1705770), (55, 1426644), (60, 1307757), (66, 1188870), (69, 1137180), (90, 871838), (92, 852885), (99, 792580), (110, 713322), (115, 682308), (132, 594435), (138, 568590), (165, 475548), (180, 435919), (198, 396290), (207, 379060), (220, 356661), (230, 341154), (253, 310140), (276, 284295), (330, 237774), (345, 227436), (396, 198145), (414, 189530), (460, 170577), (495, 158516), (506, 155070), (660, 118887), (690, 113718), (759, 103380), (828, 94765), (990, 79258), (1012, 77535), (1035, 75812), (1265, 62028), (1380, 56859), (1518, 51690), (1723, 45540), (1980, 39629), (2070, 37906), (2277, 34460), (2530, 31014), (3036, 25845), (3446, 22770), (3795, 20676), (4140, 18953), (4554, 17230), (5060, 15507), (5169, 15180), (6892, 11385), (7590, 10338), (8615, 9108)]