1640615060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{3779}}^1$

素因数の和:4245

約数の個数: 72

約数和(自身を含む): 4017898080

約数和(自身を除く): 2377283020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 443, 490, 886, 980, 1772, 2215, 3101, 3779, 4430, 6202, 7558, 8860, 12404, 15116, 15505, 18895, 21707, 26453, 31010, 37790, 43414, 52906, 62020, 75580, 86828, 105812, 108535, 132265, 185171, 217070, 264530, 370342, 434140, 529060, 740684, 925855, 1674097, 1851710, 3348194, 3703420, 6696388, 8370485, 11718679, 16740970, 23437358, 33481940, 46874716, 58593395, 82030753, 117186790, 164061506, 234373580, 328123012, 410153765, 820307530, 1640615060]

約数ペア:

[(1, 1640615060), (2, 820307530), (4, 410153765), (5, 328123012), (7, 234373580), (10, 164061506), (14, 117186790), (20, 82030753), (28, 58593395), (35, 46874716), (49, 33481940), (70, 23437358), (98, 16740970), (140, 11718679), (196, 8370485), (245, 6696388), (443, 3703420), (490, 3348194), (886, 1851710), (980, 1674097), (1772, 925855), (2215, 740684), (3101, 529060), (3779, 434140), (4430, 370342), (6202, 264530), (7558, 217070), (8860, 185171), (12404, 132265), (15116, 108535), (15505, 105812), (18895, 86828), (21707, 75580), (26453, 62020), (31010, 52906), (37790, 43414)]