28684984

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 60233400

約数和(自身を除く): 31548416

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 289, 323, 578, 646, 653, 1156, 1292, 1306, 2312, 2584, 2612, 5224, 5491, 10982, 11101, 12407, 21964, 22202, 24814, 43928, 44404, 49628, 88808, 99256, 188717, 210919, 377434, 421838, 754868, 843676, 1509736, 1687352, 3585623, 7171246, 14342492, 28684984]

約数ペア:

[(1, 28684984), (2, 14342492), (4, 7171246), (8, 3585623), (17, 1687352), (19, 1509736), (34, 843676), (38, 754868), (68, 421838), (76, 377434), (136, 210919), (152, 188717), (289, 99256), (323, 88808), (578, 49628), (646, 44404), (653, 43928), (1156, 24814), (1292, 22202), (1306, 21964), (2312, 12407), (2584, 11101), (2612, 10982), (5224, 5491)]