1333280

素因数分解:

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

素因数の和:669

約数の個数: 48

約数和(自身を含む): 3397464

約数和(自身を除く): 2064184

約数列:

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

約数ペア:

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