71987440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{128549}}^1$

素因数の和:128569

約数の個数: 40

約数和(自身を含む): 191282400

約数和(自身を除く): 119294960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 128549, 257098, 514196, 642745, 899843, 1028392, 1285490, 1799686, 2056784, 2570980, 3599372, 4499215, 5141960, 7198744, 8998430, 10283920, 14397488, 17996860, 35993720, 71987440]

約数ペア:

[(1, 71987440), (2, 35993720), (4, 17996860), (5, 14397488), (7, 10283920), (8, 8998430), (10, 7198744), (14, 5141960), (16, 4499215), (20, 3599372), (28, 2570980), (35, 2056784), (40, 1799686), (56, 1285490), (70, 1028392), (80, 899843), (112, 642745), (140, 514196), (280, 257098), (560, 128549)]