647680

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:57

約数の個数: 80

約数和(自身を含む): 1767744

約数和(自身を除く): 1120064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 64, 80, 88, 92, 110, 115, 128, 160, 176, 184, 220, 230, 253, 256, 320, 352, 368, 440, 460, 506, 512, 640, 704, 736, 880, 920, 1012, 1265, 1280, 1408, 1472, 1760, 1840, 2024, 2530, 2560, 2816, 2944, 3520, 3680, 4048, 5060, 5632, 5888, 7040, 7360, 8096, 10120, 11776, 14080, 14720, 16192, 20240, 28160, 29440, 32384, 40480, 58880, 64768, 80960, 129536, 161920, 323840, 647680]

約数ペア:

[(1, 647680), (2, 323840), (4, 161920), (5, 129536), (8, 80960), (10, 64768), (11, 58880), (16, 40480), (20, 32384), (22, 29440), (23, 28160), (32, 20240), (40, 16192), (44, 14720), (46, 14080), (55, 11776), (64, 10120), (80, 8096), (88, 7360), (92, 7040), (110, 5888), (115, 5632), (128, 5060), (160, 4048), (176, 3680), (184, 3520), (220, 2944), (230, 2816), (253, 2560), (256, 2530), (320, 2024), (352, 1840), (368, 1760), (440, 1472), (460, 1408), (506, 1280), (512, 1265), (640, 1012), (704, 920), (736, 880)]