820376080

素因数分解:

$2^4\times 5^1\times {\mathrm{2843}}^1\times {\mathrm{3607}}^1$

素因数の和:6463

約数の個数: 40

約数和(自身を含む): 1908574272

約数和(自身を除く): 1088198192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2843, 3607, 5686, 7214, 11372, 14215, 14428, 18035, 22744, 28430, 28856, 36070, 45488, 56860, 57712, 72140, 113720, 144280, 227440, 288560, 10254701, 20509402, 41018804, 51273505, 82037608, 102547010, 164075216, 205094020, 410188040, 820376080]

約数ペア:

[(1, 820376080), (2, 410188040), (4, 205094020), (5, 164075216), (8, 102547010), (10, 82037608), (16, 51273505), (20, 41018804), (40, 20509402), (80, 10254701), (2843, 288560), (3607, 227440), (5686, 144280), (7214, 113720), (11372, 72140), (14215, 57712), (14428, 56860), (18035, 45488), (22744, 36070), (28430, 28856)]