661085696

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{67957}}^1$

素因数の和:67994

約数の個数: 40

約数和(自身を含む): 1390420680

約数和(自身を除く): 729334984

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2432, 4864, 9728, 67957, 135914, 271828, 543656, 1087312, 1291183, 2174624, 2582366, 4349248, 5164732, 8698496, 10329464, 17396992, 20658928, 34793984, 41317856, 82635712, 165271424, 330542848, 661085696]

約数ペア:

[(1, 661085696), (2, 330542848), (4, 165271424), (8, 82635712), (16, 41317856), (19, 34793984), (32, 20658928), (38, 17396992), (64, 10329464), (76, 8698496), (128, 5164732), (152, 4349248), (256, 2582366), (304, 2174624), (512, 1291183), (608, 1087312), (1216, 543656), (2432, 271828), (4864, 135914), (9728, 67957)]