20895040

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:224

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 34407872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 136, 160, 167, 170, 184, 230, 272, 320, 334, 340, 368, 391, 460, 544, 668, 680, 736, 782, 835, 920, 1088, 1336, 1360, 1472, 1564, 1670, 1840, 1955, 2672, 2720, 2839, 3128, 3340, 3680, 3841, 3910, 5344, 5440, 5678, 6256, 6680, 7360, 7682, 7820, 10688, 11356, 12512, 13360, 14195, 15364, 15640, 19205, 22712, 25024, 26720, 28390, 30728, 31280, 38410, 45424, 53440, 56780, 61456, 62560, 65297, 76820, 90848, 113560, 122912, 125120, 130594, 153640, 181696, 227120, 245824, 261188, 307280, 326485, 454240, 522376, 614560, 652970, 908480, 1044752, 1229120, 1305940, 2089504, 2611880, 4179008, 5223760, 10447520, 20895040]

約数ペア:

[(1, 20895040), (2, 10447520), (4, 5223760), (5, 4179008), (8, 2611880), (10, 2089504), (16, 1305940), (17, 1229120), (20, 1044752), (23, 908480), (32, 652970), (34, 614560), (40, 522376), (46, 454240), (64, 326485), (68, 307280), (80, 261188), (85, 245824), (92, 227120), (115, 181696), (136, 153640), (160, 130594), (167, 125120), (170, 122912), (184, 113560), (230, 90848), (272, 76820), (320, 65297), (334, 62560), (340, 61456), (368, 56780), (391, 53440), (460, 45424), (544, 38410), (668, 31280), (680, 30728), (736, 28390), (782, 26720), (835, 25024), (920, 22712), (1088, 19205), (1336, 15640), (1360, 15364), (1472, 14195), (1564, 13360), (1670, 12512), (1840, 11356), (1955, 10688), (2672, 7820), (2720, 7682), (2839, 7360), (3128, 6680), (3340, 6256), (3680, 5678), (3841, 5440), (3910, 5344)]