64680420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154001}}^1$

素因数の和:154020

約数の個数: 48

約数和(自身を含む): 206978688

約数和(自身を除く): 142298268

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, 154001, 308002, 462003, 616004, 770005, 924006, 1078007, 1540010, 1848012, 2156014, 2310015, 3080020, 3234021, 4312028, 4620030, 5390035, 6468042, 9240060, 10780070, 12936084, 16170105, 21560140, 32340210, 64680420]

約数ペア:

[(1, 64680420), (2, 32340210), (3, 21560140), (4, 16170105), (5, 12936084), (6, 10780070), (7, 9240060), (10, 6468042), (12, 5390035), (14, 4620030), (15, 4312028), (20, 3234021), (21, 3080020), (28, 2310015), (30, 2156014), (35, 1848012), (42, 1540010), (60, 1078007), (70, 924006), (84, 770005), (105, 616004), (140, 462003), (210, 308002), (420, 154001)]