77112760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 102512840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 172, 214, 215, 344, 419, 428, 430, 535, 838, 856, 860, 1070, 1676, 1720, 2095, 2140, 3352, 4190, 4280, 4601, 8380, 9202, 16760, 18017, 18404, 23005, 36034, 36808, 44833, 46010, 72068, 89666, 90085, 92020, 144136, 179332, 180170, 184040, 224165, 358664, 360340, 448330, 720680, 896660, 1793320, 1927819, 3855638, 7711276, 9639095, 15422552, 19278190, 38556380, 77112760]

約数ペア:

[(1, 77112760), (2, 38556380), (4, 19278190), (5, 15422552), (8, 9639095), (10, 7711276), (20, 3855638), (40, 1927819), (43, 1793320), (86, 896660), (107, 720680), (172, 448330), (214, 360340), (215, 358664), (344, 224165), (419, 184040), (428, 180170), (430, 179332), (535, 144136), (838, 92020), (856, 90085), (860, 89666), (1070, 72068), (1676, 46010), (1720, 44833), (2095, 36808), (2140, 36034), (3352, 23005), (4190, 18404), (4280, 18017), (4601, 16760), (8380, 9202)]