80747880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 251596800

約数和(自身を除く): 170848920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 103, 120, 139, 141, 188, 206, 235, 278, 282, 309, 376, 412, 417, 470, 515, 556, 564, 618, 695, 705, 824, 834, 940, 1030, 1112, 1128, 1236, 1390, 1410, 1545, 1668, 1880, 2060, 2085, 2472, 2780, 2820, 3090, 3336, 4120, 4170, 4841, 5560, 5640, 6180, 6533, 8340, 9682, 12360, 13066, 14317, 14523, 16680, 19364, 19599, 24205, 26132, 28634, 29046, 32665, 38728, 39198, 42951, 48410, 52264, 57268, 58092, 65330, 71585, 72615, 78396, 85902, 96820, 97995, 114536, 116184, 130660, 143170, 145230, 156792, 171804, 193640, 195990, 214755, 261320, 286340, 290460, 343608, 391980, 429510, 572680, 580920, 672899, 783960, 859020, 1345798, 1718040, 2018697, 2691596, 3364495, 4037394, 5383192, 6728990, 8074788, 10093485, 13457980, 16149576, 20186970, 26915960, 40373940, 80747880]

約数ペア:

[(1, 80747880), (2, 40373940), (3, 26915960), (4, 20186970), (5, 16149576), (6, 13457980), (8, 10093485), (10, 8074788), (12, 6728990), (15, 5383192), (20, 4037394), (24, 3364495), (30, 2691596), (40, 2018697), (47, 1718040), (60, 1345798), (94, 859020), (103, 783960), (120, 672899), (139, 580920), (141, 572680), (188, 429510), (206, 391980), (235, 343608), (278, 290460), (282, 286340), (309, 261320), (376, 214755), (412, 195990), (417, 193640), (470, 171804), (515, 156792), (556, 145230), (564, 143170), (618, 130660), (695, 116184), (705, 114536), (824, 97995), (834, 96820), (940, 85902), (1030, 78396), (1112, 72615), (1128, 71585), (1236, 65330), (1390, 58092), (1410, 57268), (1545, 52264), (1668, 48410), (1880, 42951), (2060, 39198), (2085, 38728), (2472, 32665), (2780, 29046), (2820, 28634), (3090, 26132), (3336, 24205), (4120, 19599), (4170, 19364), (4841, 16680), (5560, 14523), (5640, 14317), (6180, 13066), (6533, 12360), (8340, 9682)]