348450640

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{11197}}^1$

素因数の和:11599

約数の個数: 40

約数和(自身を含む): 812302920

約数和(自身を除く): 463852280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 11197, 15560, 22394, 31120, 44788, 55985, 89576, 111970, 179152, 223940, 447880, 895760, 4355633, 8711266, 17422532, 21778165, 34845064, 43556330, 69690128, 87112660, 174225320, 348450640]

約数ペア:

[(1, 348450640), (2, 174225320), (4, 87112660), (5, 69690128), (8, 43556330), (10, 34845064), (16, 21778165), (20, 17422532), (40, 8711266), (80, 4355633), (389, 895760), (778, 447880), (1556, 223940), (1945, 179152), (3112, 111970), (3890, 89576), (6224, 55985), (7780, 44788), (11197, 31120), (15560, 22394)]