1395997208

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^2\times {\mathrm{349}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 2731176000

約数和(自身を除く): 1335178792

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 349, 508, 698, 1016, 1396, 2792, 3937, 7874, 10819, 15748, 16129, 21638, 31496, 32258, 43276, 44323, 64516, 86552, 88646, 129032, 177292, 354584, 499999, 999998, 1374013, 1999996, 2748026, 3999992, 5496052, 5629021, 10992104, 11258042, 22516084, 45032168, 174499651, 348999302, 697998604, 1395997208]

約数ペア:

[(1, 1395997208), (2, 697998604), (4, 348999302), (8, 174499651), (31, 45032168), (62, 22516084), (124, 11258042), (127, 10992104), (248, 5629021), (254, 5496052), (349, 3999992), (508, 2748026), (698, 1999996), (1016, 1374013), (1396, 999998), (2792, 499999), (3937, 354584), (7874, 177292), (10819, 129032), (15748, 88646), (16129, 86552), (21638, 64516), (31496, 44323), (32258, 43276)]