71137840

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1747}}^1$

素因数の和:2269

約数の個数: 40

約数和(自身を含む): 165815280

約数和(自身を除く): 94677440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 1747, 2036, 2545, 3494, 4072, 5090, 6988, 8144, 8735, 10180, 13976, 17470, 20360, 27952, 34940, 40720, 69880, 139760, 889223, 1778446, 3556892, 4446115, 7113784, 8892230, 14227568, 17784460, 35568920, 71137840]

約数ペア:

[(1, 71137840), (2, 35568920), (4, 17784460), (5, 14227568), (8, 8892230), (10, 7113784), (16, 4446115), (20, 3556892), (40, 1778446), (80, 889223), (509, 139760), (1018, 69880), (1747, 40720), (2036, 34940), (2545, 27952), (3494, 20360), (4072, 17470), (5090, 13976), (6988, 10180), (8144, 8735)]