653804680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{4271}}^1$

素因数の和:4414

約数の個数: 64

約数和(自身を含む): 1522540800

約数和(自身を除く): 868736120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 712, 860, 890, 1720, 1780, 3560, 3827, 4271, 7654, 8542, 15308, 17084, 19135, 21355, 30616, 34168, 38270, 42710, 76540, 85420, 153080, 170840, 183653, 367306, 380119, 734612, 760238, 918265, 1469224, 1520476, 1836530, 1900595, 3040952, 3673060, 3801190, 7346120, 7602380, 15204760, 16345117, 32690234, 65380468, 81725585, 130760936, 163451170, 326902340, 653804680]

約数ペア:

[(1, 653804680), (2, 326902340), (4, 163451170), (5, 130760936), (8, 81725585), (10, 65380468), (20, 32690234), (40, 16345117), (43, 15204760), (86, 7602380), (89, 7346120), (172, 3801190), (178, 3673060), (215, 3040952), (344, 1900595), (356, 1836530), (430, 1520476), (445, 1469224), (712, 918265), (860, 760238), (890, 734612), (1720, 380119), (1780, 367306), (3560, 183653), (3827, 170840), (4271, 153080), (7654, 85420), (8542, 76540), (15308, 42710), (17084, 38270), (19135, 34168), (21355, 30616)]