19738720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 50561280

約数和(自身を除く): 30822560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 76, 80, 86, 95, 151, 152, 160, 172, 190, 215, 302, 304, 344, 380, 430, 604, 608, 688, 755, 760, 817, 860, 1208, 1376, 1510, 1520, 1634, 1720, 2416, 2869, 3020, 3040, 3268, 3440, 4085, 4832, 5738, 6040, 6493, 6536, 6880, 8170, 11476, 12080, 12986, 13072, 14345, 16340, 22952, 24160, 25972, 26144, 28690, 32465, 32680, 45904, 51944, 57380, 64930, 65360, 91808, 103888, 114760, 123367, 129860, 130720, 207776, 229520, 246734, 259720, 459040, 493468, 519440, 616835, 986936, 1038880, 1233670, 1973872, 2467340, 3947744, 4934680, 9869360, 19738720]

約数ペア:

[(1, 19738720), (2, 9869360), (4, 4934680), (5, 3947744), (8, 2467340), (10, 1973872), (16, 1233670), (19, 1038880), (20, 986936), (32, 616835), (38, 519440), (40, 493468), (43, 459040), (76, 259720), (80, 246734), (86, 229520), (95, 207776), (151, 130720), (152, 129860), (160, 123367), (172, 114760), (190, 103888), (215, 91808), (302, 65360), (304, 64930), (344, 57380), (380, 51944), (430, 45904), (604, 32680), (608, 32465), (688, 28690), (755, 26144), (760, 25972), (817, 24160), (860, 22952), (1208, 16340), (1376, 14345), (1510, 13072), (1520, 12986), (1634, 12080), (1720, 11476), (2416, 8170), (2869, 6880), (3020, 6536), (3040, 6493), (3268, 6040), (3440, 5738), (4085, 4832)]