80170000

素因数分解:

$2^4\times 5^4\times {\mathrm{8017}}^1$

素因数の和:8045

約数の個数: 50

約数和(自身を含む): 194123798

約数和(自身を除く): 113953798

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 8017, 10000, 16034, 32068, 40085, 64136, 80170, 128272, 160340, 200425, 320680, 400850, 641360, 801700, 1002125, 1603400, 2004250, 3206800, 4008500, 5010625, 8017000, 10021250, 16034000, 20042500, 40085000, 80170000]

約数ペア:

[(1, 80170000), (2, 40085000), (4, 20042500), (5, 16034000), (8, 10021250), (10, 8017000), (16, 5010625), (20, 4008500), (25, 3206800), (40, 2004250), (50, 1603400), (80, 1002125), (100, 801700), (125, 641360), (200, 400850), (250, 320680), (400, 200425), (500, 160340), (625, 128272), (1000, 80170), (1250, 64136), (2000, 40085), (2500, 32068), (5000, 16034), (8017, 10000)]