40387760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{10303}}^1$

素因数の和:10330

約数の個数: 60

約数和(自身を含む): 109243008

約数和(自身を除く): 68855248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 10303, 20606, 41212, 51515, 72121, 82424, 103030, 144242, 164848, 206060, 288484, 360605, 412120, 504847, 576968, 721210, 824240, 1009694, 1153936, 1442420, 2019388, 2524235, 2884840, 4038776, 5048470, 5769680, 8077552, 10096940, 20193880, 40387760]

約数ペア:

[(1, 40387760), (2, 20193880), (4, 10096940), (5, 8077552), (7, 5769680), (8, 5048470), (10, 4038776), (14, 2884840), (16, 2524235), (20, 2019388), (28, 1442420), (35, 1153936), (40, 1009694), (49, 824240), (56, 721210), (70, 576968), (80, 504847), (98, 412120), (112, 360605), (140, 288484), (196, 206060), (245, 164848), (280, 144242), (392, 103030), (490, 82424), (560, 72121), (784, 51515), (980, 41212), (1960, 20606), (3920, 10303)]