78355480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^4$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 210643920

約数和(自身を除く): 132288440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 529, 644, 805, 920, 1058, 1288, 1610, 2116, 2645, 3220, 3703, 4232, 5290, 6440, 7406, 10580, 12167, 14812, 18515, 21160, 24334, 29624, 37030, 48668, 60835, 74060, 85169, 97336, 121670, 148120, 170338, 243340, 279841, 340676, 425845, 486680, 559682, 681352, 851690, 1119364, 1399205, 1703380, 1958887, 2238728, 2798410, 3406760, 3917774, 5596820, 7835548, 9794435, 11193640, 15671096, 19588870, 39177740, 78355480]

約数ペア:

[(1, 78355480), (2, 39177740), (4, 19588870), (5, 15671096), (7, 11193640), (8, 9794435), (10, 7835548), (14, 5596820), (20, 3917774), (23, 3406760), (28, 2798410), (35, 2238728), (40, 1958887), (46, 1703380), (56, 1399205), (70, 1119364), (92, 851690), (115, 681352), (140, 559682), (161, 486680), (184, 425845), (230, 340676), (280, 279841), (322, 243340), (460, 170338), (529, 148120), (644, 121670), (805, 97336), (920, 85169), (1058, 74060), (1288, 60835), (1610, 48668), (2116, 37030), (2645, 29624), (3220, 24334), (3703, 21160), (4232, 18515), (5290, 14812), (6440, 12167), (7406, 10580)]