128406684

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3631}}^1$

素因数の和:4066

約数の個数: 48

約数和(自身を含む): 343325696

約数和(自身を除く): 214919012

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 421, 842, 1263, 1684, 2526, 2947, 3631, 5052, 5894, 7262, 8841, 10893, 11788, 14524, 17682, 21786, 25417, 35364, 43572, 50834, 76251, 101668, 152502, 305004, 1528651, 3057302, 4585953, 6114604, 9171906, 10700557, 18343812, 21401114, 32101671, 42802228, 64203342, 128406684]

約数ペア:

[(1, 128406684), (2, 64203342), (3, 42802228), (4, 32101671), (6, 21401114), (7, 18343812), (12, 10700557), (14, 9171906), (21, 6114604), (28, 4585953), (42, 3057302), (84, 1528651), (421, 305004), (842, 152502), (1263, 101668), (1684, 76251), (2526, 50834), (2947, 43572), (3631, 35364), (5052, 25417), (5894, 21786), (7262, 17682), (8841, 14524), (10893, 11788)]