7980420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19001}}^1$

素因数の和:19020

約数の個数: 48

約数和(自身を含む): 25538688

約数和(自身を除く): 17558268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19001, 38002, 57003, 76004, 95005, 114006, 133007, 190010, 228012, 266014, 285015, 380020, 399021, 532028, 570030, 665035, 798042, 1140060, 1330070, 1596084, 1995105, 2660140, 3990210, 7980420]

約数ペア:

[(1, 7980420), (2, 3990210), (3, 2660140), (4, 1995105), (5, 1596084), (6, 1330070), (7, 1140060), (10, 798042), (12, 665035), (14, 570030), (15, 532028), (20, 399021), (21, 380020), (28, 285015), (30, 266014), (35, 228012), (42, 190010), (60, 133007), (70, 114006), (84, 95005), (105, 76004), (140, 57003), (210, 38002), (420, 19001)]