51355120

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{929}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 119702160

約数和(自身を除く): 68347040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 929, 1382, 1858, 2764, 3455, 3716, 4645, 5528, 6910, 7432, 9290, 11056, 13820, 14864, 18580, 27640, 37160, 55280, 74320, 641939, 1283878, 2567756, 3209695, 5135512, 6419390, 10271024, 12838780, 25677560, 51355120]

約数ペア:

[(1, 51355120), (2, 25677560), (4, 12838780), (5, 10271024), (8, 6419390), (10, 5135512), (16, 3209695), (20, 2567756), (40, 1283878), (80, 641939), (691, 74320), (929, 55280), (1382, 37160), (1858, 27640), (2764, 18580), (3455, 14864), (3716, 13820), (4645, 11056), (5528, 9290), (6910, 7432)]