15019900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 38192000

約数和(自身を除く): 23172100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 499, 602, 700, 860, 998, 1075, 1204, 1505, 1996, 2150, 2495, 3010, 3493, 4300, 4990, 6020, 6986, 7525, 9980, 12475, 13972, 15050, 17465, 21457, 24950, 30100, 34930, 42914, 49900, 69860, 85828, 87325, 107285, 150199, 174650, 214570, 300398, 349300, 429140, 536425, 600796, 750995, 1072850, 1501990, 2145700, 3003980, 3754975, 7509950, 15019900]

約数ペア:

[(1, 15019900), (2, 7509950), (4, 3754975), (5, 3003980), (7, 2145700), (10, 1501990), (14, 1072850), (20, 750995), (25, 600796), (28, 536425), (35, 429140), (43, 349300), (50, 300398), (70, 214570), (86, 174650), (100, 150199), (140, 107285), (172, 87325), (175, 85828), (215, 69860), (301, 49900), (350, 42914), (430, 34930), (499, 30100), (602, 24950), (700, 21457), (860, 17465), (998, 15050), (1075, 13972), (1204, 12475), (1505, 9980), (1996, 7525), (2150, 6986), (2495, 6020), (3010, 4990), (3493, 4300)]