15781280

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1929

約数の個数: 48

約数和(自身を含む): 38007144

約数和(自身を除く): 22225864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 1861, 2120, 3722, 4240, 7444, 8480, 9305, 14888, 18610, 29776, 37220, 59552, 74440, 98633, 148880, 197266, 297760, 394532, 493165, 789064, 986330, 1578128, 1972660, 3156256, 3945320, 7890640, 15781280]

約数ペア:

[(1, 15781280), (2, 7890640), (4, 3945320), (5, 3156256), (8, 1972660), (10, 1578128), (16, 986330), (20, 789064), (32, 493165), (40, 394532), (53, 297760), (80, 197266), (106, 148880), (160, 98633), (212, 74440), (265, 59552), (424, 37220), (530, 29776), (848, 18610), (1060, 14888), (1696, 9305), (1861, 8480), (2120, 7444), (3722, 4240)]