640738784

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{124367}}^1$

素因数の和:124407

約数の個数: 48

約数和(自身を含む): 1504355328

約数和(自身を除く): 863616544

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 5152, 124367, 248734, 497468, 870569, 994936, 1741138, 1989872, 2860441, 3482276, 3979744, 5720882, 6964552, 11441764, 13929104, 20023087, 22883528, 27858208, 40046174, 45767056, 80092348, 91534112, 160184696, 320369392, 640738784]

約数ペア:

[(1, 640738784), (2, 320369392), (4, 160184696), (7, 91534112), (8, 80092348), (14, 45767056), (16, 40046174), (23, 27858208), (28, 22883528), (32, 20023087), (46, 13929104), (56, 11441764), (92, 6964552), (112, 5720882), (161, 3979744), (184, 3482276), (224, 2860441), (322, 1989872), (368, 1741138), (644, 994936), (736, 870569), (1288, 497468), (2576, 248734), (5152, 124367)]