28123634

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 55959552

約数和(自身を除く): 27835918

約数列:

[1, 2, 7, 11, 14, 22, 31, 43, 62, 77, 86, 137, 154, 217, 274, 301, 341, 434, 473, 602, 682, 946, 959, 1333, 1507, 1918, 2387, 2666, 3014, 3311, 4247, 4774, 5891, 6622, 8494, 9331, 10549, 11782, 14663, 18662, 21098, 29326, 29729, 41237, 46717, 59458, 64801, 82474, 93434, 102641, 129602, 182621, 205282, 327019, 365242, 453607, 654038, 907214, 1278347, 2008831, 2556694, 4017662, 14061817, 28123634]

約数ペア:

[(1, 28123634), (2, 14061817), (7, 4017662), (11, 2556694), (14, 2008831), (22, 1278347), (31, 907214), (43, 654038), (62, 453607), (77, 365242), (86, 327019), (137, 205282), (154, 182621), (217, 129602), (274, 102641), (301, 93434), (341, 82474), (434, 64801), (473, 59458), (602, 46717), (682, 41237), (946, 29729), (959, 29326), (1333, 21098), (1507, 18662), (1918, 14663), (2387, 11782), (2666, 10549), (3014, 9331), (3311, 8494), (4247, 6622), (4774, 5891)]