649078640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{937}}^1\times {\mathrm{1237}}^1$

素因数の和:2194

約数の個数: 80

約数和(自身を含む): 1727931072

約数和(自身を除く): 1078852432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 937, 1237, 1874, 2474, 3748, 4685, 4948, 6185, 6559, 7496, 8659, 9370, 9896, 12370, 13118, 14992, 17318, 18740, 19792, 24740, 26236, 32795, 34636, 37480, 43295, 49480, 52472, 65590, 69272, 74960, 86590, 98960, 104944, 131180, 138544, 173180, 262360, 346360, 524720, 692720, 1159069, 2318138, 4636276, 5795345, 8113483, 9272552, 11590690, 16226966, 18545104, 23181380, 32453932, 40567415, 46362760, 64907864, 81134830, 92725520, 129815728, 162269660, 324539320, 649078640]

約数ペア:

[(1, 649078640), (2, 324539320), (4, 162269660), (5, 129815728), (7, 92725520), (8, 81134830), (10, 64907864), (14, 46362760), (16, 40567415), (20, 32453932), (28, 23181380), (35, 18545104), (40, 16226966), (56, 11590690), (70, 9272552), (80, 8113483), (112, 5795345), (140, 4636276), (280, 2318138), (560, 1159069), (937, 692720), (1237, 524720), (1874, 346360), (2474, 262360), (3748, 173180), (4685, 138544), (4948, 131180), (6185, 104944), (6559, 98960), (7496, 86590), (8659, 74960), (9370, 69272), (9896, 65590), (12370, 52472), (13118, 49480), (14992, 43295), (17318, 37480), (18740, 34636), (19792, 32795), (24740, 26236)]