19899040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 96

約数和(自身を含む): 54552960

約数和(自身を除く): 34653920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 109, 112, 140, 160, 163, 218, 224, 280, 326, 436, 545, 560, 652, 763, 815, 872, 1090, 1120, 1141, 1304, 1526, 1630, 1744, 2180, 2282, 2608, 3052, 3260, 3488, 3815, 4360, 4564, 5216, 5705, 6104, 6520, 7630, 8720, 9128, 11410, 12208, 13040, 15260, 17440, 17767, 18256, 22820, 24416, 26080, 30520, 35534, 36512, 45640, 61040, 71068, 88835, 91280, 122080, 124369, 142136, 177670, 182560, 248738, 284272, 355340, 497476, 568544, 621845, 710680, 994952, 1243690, 1421360, 1989904, 2487380, 2842720, 3979808, 4974760, 9949520, 19899040]

約数ペア:

[(1, 19899040), (2, 9949520), (4, 4974760), (5, 3979808), (7, 2842720), (8, 2487380), (10, 1989904), (14, 1421360), (16, 1243690), (20, 994952), (28, 710680), (32, 621845), (35, 568544), (40, 497476), (56, 355340), (70, 284272), (80, 248738), (109, 182560), (112, 177670), (140, 142136), (160, 124369), (163, 122080), (218, 91280), (224, 88835), (280, 71068), (326, 61040), (436, 45640), (545, 36512), (560, 35534), (652, 30520), (763, 26080), (815, 24416), (872, 22820), (1090, 18256), (1120, 17767), (1141, 17440), (1304, 15260), (1526, 13040), (1630, 12208), (1744, 11410), (2180, 9128), (2282, 8720), (2608, 7630), (3052, 6520), (3260, 6104), (3488, 5705), (3815, 5216), (4360, 4564)]