820885970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1229}}^1\times {\mathrm{3929}}^1$

素因数の和:5182

約数の個数: 32

約数和(自身を含む): 1566183600

約数和(自身を除く): 745297630

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 1229, 2458, 3929, 6145, 7858, 12290, 19645, 20893, 39290, 41786, 66793, 104465, 133586, 208930, 333965, 667930, 4828741, 9657482, 24143705, 48287410, 82088597, 164177194, 410442985, 820885970]

約数ペア:

[(1, 820885970), (2, 410442985), (5, 164177194), (10, 82088597), (17, 48287410), (34, 24143705), (85, 9657482), (170, 4828741), (1229, 667930), (2458, 333965), (3929, 208930), (6145, 133586), (7858, 104465), (12290, 66793), (19645, 41786), (20893, 39290)]