2666560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 56

約数和(自身を含む): 6848856

約数和(自身を除く): 4182296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 641, 832, 1040, 1282, 2080, 2564, 3205, 4160, 5128, 6410, 8333, 10256, 12820, 16666, 20512, 25640, 33332, 41024, 41665, 51280, 66664, 83330, 102560, 133328, 166660, 205120, 266656, 333320, 533312, 666640, 1333280, 2666560]

約数ペア:

[(1, 2666560), (2, 1333280), (4, 666640), (5, 533312), (8, 333320), (10, 266656), (13, 205120), (16, 166660), (20, 133328), (26, 102560), (32, 83330), (40, 66664), (52, 51280), (64, 41665), (65, 41024), (80, 33332), (104, 25640), (130, 20512), (160, 16666), (208, 12820), (260, 10256), (320, 8333), (416, 6410), (520, 5128), (641, 4160), (832, 3205), (1040, 2564), (1282, 2080)]