19459580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4793}}^1$

素因数の和:4838

約数の個数: 48

約数和(自身を含む): 48323520

約数和(自身を除く): 28863940

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, 4793, 9586, 19172, 23965, 33551, 47930, 67102, 95860, 134204, 138997, 167755, 277994, 335510, 555988, 671020, 694985, 972979, 1389970, 1945958, 2779940, 3891916, 4864895, 9729790, 19459580]

約数ペア:

[(1, 19459580), (2, 9729790), (4, 4864895), (5, 3891916), (7, 2779940), (10, 1945958), (14, 1389970), (20, 972979), (28, 694985), (29, 671020), (35, 555988), (58, 335510), (70, 277994), (116, 167755), (140, 138997), (145, 134204), (203, 95860), (290, 67102), (406, 47930), (580, 33551), (812, 23965), (1015, 19172), (2030, 9586), (4060, 4793)]