16890400

素因数分解:

$2^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 72

約数和(自身を含む): 42278544

約数和(自身を除く): 25388144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 160, 172, 200, 215, 344, 400, 430, 491, 688, 800, 860, 982, 1075, 1376, 1720, 1964, 2150, 2455, 3440, 3928, 4300, 4910, 6880, 7856, 8600, 9820, 12275, 15712, 17200, 19640, 21113, 24550, 34400, 39280, 42226, 49100, 78560, 84452, 98200, 105565, 168904, 196400, 211130, 337808, 392800, 422260, 527825, 675616, 844520, 1055650, 1689040, 2111300, 3378080, 4222600, 8445200, 16890400]

約数ペア:

[(1, 16890400), (2, 8445200), (4, 4222600), (5, 3378080), (8, 2111300), (10, 1689040), (16, 1055650), (20, 844520), (25, 675616), (32, 527825), (40, 422260), (43, 392800), (50, 337808), (80, 211130), (86, 196400), (100, 168904), (160, 105565), (172, 98200), (200, 84452), (215, 78560), (344, 49100), (400, 42226), (430, 39280), (491, 34400), (688, 24550), (800, 21113), (860, 19640), (982, 17200), (1075, 15712), (1376, 12275), (1720, 9820), (1964, 8600), (2150, 7856), (2455, 6880), (3440, 4910), (3928, 4300)]