64420000

素因数分解:

$2^5\times 5^4\times {\mathrm{3221}}^1$

素因数の和:3251

約数の個数: 60

約数和(自身を含む): 158532066

約数和(自身を除く): 94112066

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3221, 4000, 5000, 6442, 10000, 12884, 16105, 20000, 25768, 32210, 51536, 64420, 80525, 103072, 128840, 161050, 257680, 322100, 402625, 515360, 644200, 805250, 1288400, 1610500, 2013125, 2576800, 3221000, 4026250, 6442000, 8052500, 12884000, 16105000, 32210000, 64420000]

約数ペア:

[(1, 64420000), (2, 32210000), (4, 16105000), (5, 12884000), (8, 8052500), (10, 6442000), (16, 4026250), (20, 3221000), (25, 2576800), (32, 2013125), (40, 1610500), (50, 1288400), (80, 805250), (100, 644200), (125, 515360), (160, 402625), (200, 322100), (250, 257680), (400, 161050), (500, 128840), (625, 103072), (800, 80525), (1000, 64420), (1250, 51536), (2000, 32210), (2500, 25768), (3221, 20000), (4000, 16105), (5000, 12884), (6442, 10000)]