31785740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7829}}^1$

素因数の和:7874

約数の個数: 48

約数和(自身を含む): 78926400

約数和(自身を除く): 47140660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 7829, 15658, 31316, 39145, 54803, 78290, 109606, 156580, 219212, 227041, 274015, 454082, 548030, 908164, 1096060, 1135205, 1589287, 2270410, 3178574, 4540820, 6357148, 7946435, 15892870, 31785740]

約数ペア:

[(1, 31785740), (2, 15892870), (4, 7946435), (5, 6357148), (7, 4540820), (10, 3178574), (14, 2270410), (20, 1589287), (28, 1135205), (29, 1096060), (35, 908164), (58, 548030), (70, 454082), (116, 274015), (140, 227041), (145, 219212), (203, 156580), (290, 109606), (406, 78290), (580, 54803), (812, 39145), (1015, 31316), (2030, 15658), (4060, 7829)]