19729280

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1063}}^1$

素因数の和:1111

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 29108320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1063, 1160, 1856, 2126, 2320, 3712, 4252, 4640, 5315, 8504, 9280, 10630, 17008, 18560, 21260, 30827, 34016, 42520, 61654, 68032, 85040, 123308, 136064, 154135, 170080, 246616, 308270, 340160, 493232, 616540, 680320, 986464, 1233080, 1972928, 2466160, 3945856, 4932320, 9864640, 19729280]

約数ペア:

[(1, 19729280), (2, 9864640), (4, 4932320), (5, 3945856), (8, 2466160), (10, 1972928), (16, 1233080), (20, 986464), (29, 680320), (32, 616540), (40, 493232), (58, 340160), (64, 308270), (80, 246616), (116, 170080), (128, 154135), (145, 136064), (160, 123308), (232, 85040), (290, 68032), (320, 61654), (464, 42520), (580, 34016), (640, 30827), (928, 21260), (1063, 18560), (1160, 17008), (1856, 10630), (2126, 9280), (2320, 8504), (3712, 5315), (4252, 4640)]