72121000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{10303}}^1$

素因数の和:10331

約数の個数: 64

約数和(自身を含む): 192890880

約数和(自身を除く): 120769880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 3500, 7000, 10303, 20606, 41212, 51515, 72121, 82424, 103030, 144242, 206060, 257575, 288484, 360605, 412120, 515150, 576968, 721210, 1030300, 1287875, 1442420, 1803025, 2060600, 2575750, 2884840, 3606050, 5151500, 7212100, 9015125, 10303000, 14424200, 18030250, 36060500, 72121000]

約数ペア:

[(1, 72121000), (2, 36060500), (4, 18030250), (5, 14424200), (7, 10303000), (8, 9015125), (10, 7212100), (14, 5151500), (20, 3606050), (25, 2884840), (28, 2575750), (35, 2060600), (40, 1803025), (50, 1442420), (56, 1287875), (70, 1030300), (100, 721210), (125, 576968), (140, 515150), (175, 412120), (200, 360605), (250, 288484), (280, 257575), (350, 206060), (500, 144242), (700, 103030), (875, 82424), (1000, 72121), (1400, 51515), (1750, 41212), (3500, 20606), (7000, 10303)]