81649984

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{7549}}^1$

素因数の和:7587

約数の個数: 42

約数和(自身を含む): 175469550

約数和(自身を除く): 93819566

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 7549, 10816, 15098, 30196, 60392, 98137, 120784, 196274, 241568, 392548, 483136, 785096, 1275781, 1570192, 2551562, 3140384, 5103124, 6280768, 10206248, 20412496, 40824992, 81649984]

約数ペア:

[(1, 81649984), (2, 40824992), (4, 20412496), (8, 10206248), (13, 6280768), (16, 5103124), (26, 3140384), (32, 2551562), (52, 1570192), (64, 1275781), (104, 785096), (169, 483136), (208, 392548), (338, 241568), (416, 196274), (676, 120784), (832, 98137), (1352, 60392), (2704, 30196), (5408, 15098), (7549, 10816)]