309921440

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7537}}^1$

素因数の和:7809

約数の個数: 48

約数和(自身を含む): 735135912

約数和(自身を除く): 425214472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 7537, 8224, 10280, 15074, 20560, 30148, 37685, 41120, 60296, 75370, 120592, 150740, 241184, 301480, 602960, 1205920, 1937009, 3874018, 7748036, 9685045, 15496072, 19370090, 30992144, 38740180, 61984288, 77480360, 154960720, 309921440]

約数ペア:

[(1, 309921440), (2, 154960720), (4, 77480360), (5, 61984288), (8, 38740180), (10, 30992144), (16, 19370090), (20, 15496072), (32, 9685045), (40, 7748036), (80, 3874018), (160, 1937009), (257, 1205920), (514, 602960), (1028, 301480), (1285, 241184), (2056, 150740), (2570, 120592), (4112, 75370), (5140, 60296), (7537, 41120), (8224, 37685), (10280, 30148), (15074, 20560)]