78680560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1289}}^1$

素因数の和:1418

約数の個数: 80

約数和(自身を含む): 211147200

約数和(自身を除く): 132466640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1289, 1526, 1744, 2180, 2578, 3052, 3815, 4360, 5156, 6104, 6445, 7630, 8720, 9023, 10312, 12208, 12890, 15260, 18046, 20624, 25780, 30520, 36092, 45115, 51560, 61040, 72184, 90230, 103120, 140501, 144368, 180460, 281002, 360920, 562004, 702505, 721840, 983507, 1124008, 1405010, 1967014, 2248016, 2810020, 3934028, 4917535, 5620040, 7868056, 9835070, 11240080, 15736112, 19670140, 39340280, 78680560]

約数ペア:

[(1, 78680560), (2, 39340280), (4, 19670140), (5, 15736112), (7, 11240080), (8, 9835070), (10, 7868056), (14, 5620040), (16, 4917535), (20, 3934028), (28, 2810020), (35, 2248016), (40, 1967014), (56, 1405010), (70, 1124008), (80, 983507), (109, 721840), (112, 702505), (140, 562004), (218, 360920), (280, 281002), (436, 180460), (545, 144368), (560, 140501), (763, 103120), (872, 90230), (1090, 72184), (1289, 61040), (1526, 51560), (1744, 45115), (2180, 36092), (2578, 30520), (3052, 25780), (3815, 20624), (4360, 18046), (5156, 15260), (6104, 12890), (6445, 12208), (7630, 10312), (8720, 9023)]