16205840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:736

約数の個数: 80

約数和(自身を含む): 44128128

約数和(自身を除く): 27922288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 673, 688, 860, 1204, 1346, 1505, 1720, 2408, 2692, 3010, 3365, 3440, 4711, 4816, 5384, 6020, 6730, 9422, 10768, 12040, 13460, 18844, 23555, 24080, 26920, 28939, 37688, 47110, 53840, 57878, 75376, 94220, 115756, 144695, 188440, 202573, 231512, 289390, 376880, 405146, 463024, 578780, 810292, 1012865, 1157560, 1620584, 2025730, 2315120, 3241168, 4051460, 8102920, 16205840]

約数ペア:

[(1, 16205840), (2, 8102920), (4, 4051460), (5, 3241168), (7, 2315120), (8, 2025730), (10, 1620584), (14, 1157560), (16, 1012865), (20, 810292), (28, 578780), (35, 463024), (40, 405146), (43, 376880), (56, 289390), (70, 231512), (80, 202573), (86, 188440), (112, 144695), (140, 115756), (172, 94220), (215, 75376), (280, 57878), (301, 53840), (344, 47110), (430, 37688), (560, 28939), (602, 26920), (673, 24080), (688, 23555), (860, 18844), (1204, 13460), (1346, 12040), (1505, 10768), (1720, 9422), (2408, 6730), (2692, 6020), (3010, 5384), (3365, 4816), (3440, 4711)]