80359580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19793}}^1$

素因数の和:19838

約数の個数: 48

約数和(自身を含む): 199523520

約数和(自身を除く): 119163940

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, 19793, 39586, 79172, 98965, 138551, 197930, 277102, 395860, 554204, 573997, 692755, 1147994, 1385510, 2295988, 2771020, 2869985, 4017979, 5739970, 8035958, 11479940, 16071916, 20089895, 40179790, 80359580]

約数ペア:

[(1, 80359580), (2, 40179790), (4, 20089895), (5, 16071916), (7, 11479940), (10, 8035958), (14, 5739970), (20, 4017979), (28, 2869985), (29, 2771020), (35, 2295988), (58, 1385510), (70, 1147994), (116, 692755), (140, 573997), (145, 554204), (203, 395860), (290, 277102), (406, 197930), (580, 138551), (812, 98965), (1015, 79172), (2030, 39586), (4060, 19793)]