20097280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2243}}^1$

素因数の和:2271

約数の個数: 72

約数和(自身を含む): 55040832

約数和(自身を除く): 34943552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2243, 4480, 4486, 8960, 8972, 11215, 15701, 17944, 22430, 31402, 35888, 44860, 62804, 71776, 78505, 89720, 125608, 143552, 157010, 179440, 251216, 287104, 314020, 358880, 502432, 574208, 628040, 717760, 1004864, 1256080, 1435520, 2009728, 2512160, 2871040, 4019456, 5024320, 10048640, 20097280]

約数ペア:

[(1, 20097280), (2, 10048640), (4, 5024320), (5, 4019456), (7, 2871040), (8, 2512160), (10, 2009728), (14, 1435520), (16, 1256080), (20, 1004864), (28, 717760), (32, 628040), (35, 574208), (40, 502432), (56, 358880), (64, 314020), (70, 287104), (80, 251216), (112, 179440), (128, 157010), (140, 143552), (160, 125608), (224, 89720), (256, 78505), (280, 71776), (320, 62804), (448, 44860), (560, 35888), (640, 31402), (896, 22430), (1120, 17944), (1280, 15701), (1792, 11215), (2240, 8972), (2243, 8960), (4480, 4486)]