28656705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 58595328

約数和(自身を除く): 29938623

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 43, 55, 77, 105, 129, 165, 215, 231, 301, 385, 473, 577, 645, 903, 1155, 1419, 1505, 1731, 2365, 2885, 3311, 4039, 4515, 6347, 7095, 8655, 9933, 12117, 16555, 19041, 20195, 24811, 31735, 44429, 49665, 60585, 74433, 95205, 124055, 133287, 173677, 222145, 272921, 372165, 521031, 666435, 818763, 868385, 1364605, 1910447, 2605155, 4093815, 5731341, 9552235, 28656705]

約数ペア:

[(1, 28656705), (3, 9552235), (5, 5731341), (7, 4093815), (11, 2605155), (15, 1910447), (21, 1364605), (33, 868385), (35, 818763), (43, 666435), (55, 521031), (77, 372165), (105, 272921), (129, 222145), (165, 173677), (215, 133287), (231, 124055), (301, 95205), (385, 74433), (473, 60585), (577, 49665), (645, 44429), (903, 31735), (1155, 24811), (1419, 20195), (1505, 19041), (1731, 16555), (2365, 12117), (2885, 9933), (3311, 8655), (4039, 7095), (4515, 6347)]