318807040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:973

約数の個数: 88

約数和(自身を含む): 776418912

約数和(自身を除く): 457611872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 877, 1024, 1136, 1280, 1420, 1754, 2272, 2560, 2840, 3508, 4385, 4544, 5120, 5680, 7016, 8770, 9088, 11360, 14032, 17540, 18176, 22720, 28064, 35080, 36352, 45440, 56128, 62267, 70160, 72704, 90880, 112256, 124534, 140320, 181760, 224512, 249068, 280640, 311335, 363520, 449024, 498136, 561280, 622670, 898048, 996272, 1122560, 1245340, 1992544, 2245120, 2490680, 3985088, 4490240, 4981360, 7970176, 9962720, 15940352, 19925440, 31880704, 39850880, 63761408, 79701760, 159403520, 318807040]

約数ペア:

[(1, 318807040), (2, 159403520), (4, 79701760), (5, 63761408), (8, 39850880), (10, 31880704), (16, 19925440), (20, 15940352), (32, 9962720), (40, 7970176), (64, 4981360), (71, 4490240), (80, 3985088), (128, 2490680), (142, 2245120), (160, 1992544), (256, 1245340), (284, 1122560), (320, 996272), (355, 898048), (512, 622670), (568, 561280), (640, 498136), (710, 449024), (877, 363520), (1024, 311335), (1136, 280640), (1280, 249068), (1420, 224512), (1754, 181760), (2272, 140320), (2560, 124534), (2840, 112256), (3508, 90880), (4385, 72704), (4544, 70160), (5120, 62267), (5680, 56128), (7016, 45440), (8770, 36352), (9088, 35080), (11360, 28064), (14032, 22720), (17540, 18176)]