9118280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 21628080

約数和(自身を除く): 12509800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 101, 122, 148, 185, 202, 244, 296, 305, 370, 404, 488, 505, 610, 740, 808, 1010, 1220, 1480, 2020, 2257, 2440, 3737, 4040, 4514, 6161, 7474, 9028, 11285, 12322, 14948, 18056, 18685, 22570, 24644, 29896, 30805, 37370, 45140, 49288, 61610, 74740, 90280, 123220, 149480, 227957, 246440, 455914, 911828, 1139785, 1823656, 2279570, 4559140, 9118280]

約数ペア:

[(1, 9118280), (2, 4559140), (4, 2279570), (5, 1823656), (8, 1139785), (10, 911828), (20, 455914), (37, 246440), (40, 227957), (61, 149480), (74, 123220), (101, 90280), (122, 74740), (148, 61610), (185, 49288), (202, 45140), (244, 37370), (296, 30805), (305, 29896), (370, 24644), (404, 22570), (488, 18685), (505, 18056), (610, 14948), (740, 12322), (808, 11285), (1010, 9028), (1220, 7474), (1480, 6161), (2020, 4514), (2257, 4040), (2440, 3737)]