64420700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 150011232

約数和(自身を除く): 85590532

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 37, 46, 50, 74, 92, 100, 115, 148, 185, 230, 370, 460, 575, 740, 757, 851, 925, 1150, 1514, 1702, 1850, 2300, 3028, 3404, 3700, 3785, 4255, 7570, 8510, 15140, 17020, 17411, 18925, 21275, 28009, 34822, 37850, 42550, 56018, 69644, 75700, 85100, 87055, 112036, 140045, 174110, 280090, 348220, 435275, 560180, 644207, 700225, 870550, 1288414, 1400450, 1741100, 2576828, 2800900, 3221035, 6442070, 12884140, 16105175, 32210350, 64420700]

約数ペア:

[(1, 64420700), (2, 32210350), (4, 16105175), (5, 12884140), (10, 6442070), (20, 3221035), (23, 2800900), (25, 2576828), (37, 1741100), (46, 1400450), (50, 1288414), (74, 870550), (92, 700225), (100, 644207), (115, 560180), (148, 435275), (185, 348220), (230, 280090), (370, 174110), (460, 140045), (575, 112036), (740, 87055), (757, 85100), (851, 75700), (925, 69644), (1150, 56018), (1514, 42550), (1702, 37850), (1850, 34822), (2300, 28009), (3028, 21275), (3404, 18925), (3700, 17411), (3785, 17020), (4255, 15140), (7570, 8510)]