238417880

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 546480000

約数和(自身を除く): 308062120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 149, 218, 298, 367, 436, 545, 596, 734, 745, 872, 1090, 1192, 1468, 1490, 1835, 2180, 2936, 2980, 3670, 4360, 5960, 7340, 14680, 16241, 32482, 40003, 54683, 64964, 80006, 81205, 109366, 129928, 160012, 162410, 200015, 218732, 273415, 320024, 324820, 400030, 437464, 546830, 649640, 800060, 1093660, 1600120, 2187320, 5960447, 11920894, 23841788, 29802235, 47683576, 59604470, 119208940, 238417880]

約数ペア:

[(1, 238417880), (2, 119208940), (4, 59604470), (5, 47683576), (8, 29802235), (10, 23841788), (20, 11920894), (40, 5960447), (109, 2187320), (149, 1600120), (218, 1093660), (298, 800060), (367, 649640), (436, 546830), (545, 437464), (596, 400030), (734, 324820), (745, 320024), (872, 273415), (1090, 218732), (1192, 200015), (1468, 162410), (1490, 160012), (1835, 129928), (2180, 109366), (2936, 81205), (2980, 80006), (3670, 64964), (4360, 54683), (5960, 40003), (7340, 32482), (14680, 16241)]