999989520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{26539}}^1$

素因数の和:26712

約数の個数: 80

約数和(自身を含む): 3119830080

約数和(自身を除く): 2119840560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 2512, 3140, 3768, 4710, 6280, 7536, 9420, 12560, 18840, 26539, 37680, 53078, 79617, 106156, 132695, 159234, 212312, 265390, 318468, 398085, 424624, 530780, 636936, 796170, 1061560, 1273872, 1592340, 2123120, 3184680, 4166623, 6369360, 8333246, 12499869, 16666492, 20833115, 24999738, 33332984, 41666230, 49999476, 62499345, 66665968, 83332460, 99998952, 124998690, 166664920, 199997904, 249997380, 333329840, 499994760, 999989520]

約数ペア:

[(1, 999989520), (2, 499994760), (3, 333329840), (4, 249997380), (5, 199997904), (6, 166664920), (8, 124998690), (10, 99998952), (12, 83332460), (15, 66665968), (16, 62499345), (20, 49999476), (24, 41666230), (30, 33332984), (40, 24999738), (48, 20833115), (60, 16666492), (80, 12499869), (120, 8333246), (157, 6369360), (240, 4166623), (314, 3184680), (471, 2123120), (628, 1592340), (785, 1273872), (942, 1061560), (1256, 796170), (1570, 636936), (1884, 530780), (2355, 424624), (2512, 398085), (3140, 318468), (3768, 265390), (4710, 212312), (6280, 159234), (7536, 132695), (9420, 106156), (12560, 79617), (18840, 53078), (26539, 37680)]