28020692

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 62403264

約数和(自身を除く): 34382572

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 43, 68, 74, 86, 119, 148, 172, 238, 259, 301, 476, 518, 602, 629, 731, 1036, 1204, 1258, 1369, 1462, 1591, 2516, 2738, 2924, 3182, 4403, 5117, 5476, 6364, 8806, 9583, 10234, 11137, 17612, 19166, 20468, 22274, 23273, 27047, 38332, 44548, 46546, 54094, 58867, 93092, 108188, 117734, 162911, 189329, 235468, 325822, 378658, 412069, 651644, 757316, 824138, 1000739, 1648276, 2001478, 4002956, 7005173, 14010346, 28020692]

約数ペア:

[(1, 28020692), (2, 14010346), (4, 7005173), (7, 4002956), (14, 2001478), (17, 1648276), (28, 1000739), (34, 824138), (37, 757316), (43, 651644), (68, 412069), (74, 378658), (86, 325822), (119, 235468), (148, 189329), (172, 162911), (238, 117734), (259, 108188), (301, 93092), (476, 58867), (518, 54094), (602, 46546), (629, 44548), (731, 38332), (1036, 27047), (1204, 23273), (1258, 22274), (1369, 20468), (1462, 19166), (1591, 17612), (2516, 11137), (2738, 10234), (2924, 9583), (3182, 8806), (4403, 6364), (5117, 5476)]