19288640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 112

約数和(自身を含む): 53644800

約数和(自身を除く): 34356160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 109, 112, 140, 158, 160, 218, 224, 280, 316, 320, 395, 436, 448, 545, 553, 560, 632, 763, 790, 872, 1090, 1106, 1120, 1264, 1526, 1580, 1744, 2180, 2212, 2240, 2528, 2765, 3052, 3160, 3488, 3815, 4360, 4424, 5056, 5530, 6104, 6320, 6976, 7630, 8611, 8720, 8848, 11060, 12208, 12640, 15260, 17222, 17440, 17696, 22120, 24416, 25280, 30520, 34444, 34880, 35392, 43055, 44240, 48832, 60277, 61040, 68888, 86110, 88480, 120554, 122080, 137776, 172220, 176960, 241108, 244160, 275552, 301385, 344440, 482216, 551104, 602770, 688880, 964432, 1205540, 1377760, 1928864, 2411080, 2755520, 3857728, 4822160, 9644320, 19288640]

約数ペア:

[(1, 19288640), (2, 9644320), (4, 4822160), (5, 3857728), (7, 2755520), (8, 2411080), (10, 1928864), (14, 1377760), (16, 1205540), (20, 964432), (28, 688880), (32, 602770), (35, 551104), (40, 482216), (56, 344440), (64, 301385), (70, 275552), (79, 244160), (80, 241108), (109, 176960), (112, 172220), (140, 137776), (158, 122080), (160, 120554), (218, 88480), (224, 86110), (280, 68888), (316, 61040), (320, 60277), (395, 48832), (436, 44240), (448, 43055), (545, 35392), (553, 34880), (560, 34444), (632, 30520), (763, 25280), (790, 24416), (872, 22120), (1090, 17696), (1106, 17440), (1120, 17222), (1264, 15260), (1526, 12640), (1580, 12208), (1744, 11060), (2180, 8848), (2212, 8720), (2240, 8611), (2528, 7630), (2765, 6976), (3052, 6320), (3160, 6104), (3488, 5530), (3815, 5056), (4360, 4424)]