78565520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1223}}^1$

素因数の和:1320

約数の個数: 80

約数和(自身を含む): 202165632

約数和(自身を除く): 123600112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1168, 1223, 1460, 1606, 2446, 2920, 3212, 4015, 4892, 5840, 6115, 6424, 8030, 9784, 12230, 12848, 13453, 16060, 19568, 24460, 26906, 32120, 48920, 53812, 64240, 67265, 89279, 97840, 107624, 134530, 178558, 215248, 269060, 357116, 446395, 538120, 714232, 892790, 982069, 1076240, 1428464, 1785580, 1964138, 3571160, 3928276, 4910345, 7142320, 7856552, 9820690, 15713104, 19641380, 39282760, 78565520]

約数ペア:

[(1, 78565520), (2, 39282760), (4, 19641380), (5, 15713104), (8, 9820690), (10, 7856552), (11, 7142320), (16, 4910345), (20, 3928276), (22, 3571160), (40, 1964138), (44, 1785580), (55, 1428464), (73, 1076240), (80, 982069), (88, 892790), (110, 714232), (146, 538120), (176, 446395), (220, 357116), (292, 269060), (365, 215248), (440, 178558), (584, 134530), (730, 107624), (803, 97840), (880, 89279), (1168, 67265), (1223, 64240), (1460, 53812), (1606, 48920), (2446, 32120), (2920, 26906), (3212, 24460), (4015, 19568), (4892, 16060), (5840, 13453), (6115, 12848), (6424, 12230), (8030, 9784)]