128219984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{769}}^1$

素因数の和:1407

約数の個数: 40

約数和(自身を含む): 263811240

約数和(自身を除く): 135591256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 613, 769, 1226, 1538, 2452, 3076, 4904, 6152, 9808, 10421, 12304, 13073, 20842, 26146, 41684, 52292, 83368, 104584, 166736, 209168, 471397, 942794, 1885588, 3771176, 7542352, 8013749, 16027498, 32054996, 64109992, 128219984]

約数ペア:

[(1, 128219984), (2, 64109992), (4, 32054996), (8, 16027498), (16, 8013749), (17, 7542352), (34, 3771176), (68, 1885588), (136, 942794), (272, 471397), (613, 209168), (769, 166736), (1226, 104584), (1538, 83368), (2452, 52292), (3076, 41684), (4904, 26146), (6152, 20842), (9808, 13073), (10421, 12304)]