204037840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28657}}^1$

素因数の和:28759

約数の個数: 40

約数和(自身を含む): 479734920

約数和(自身を除く): 275697080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 28657, 57314, 114628, 143285, 229256, 286570, 458512, 573140, 1146280, 2292560, 2550473, 5100946, 10201892, 12752365, 20403784, 25504730, 40807568, 51009460, 102018920, 204037840]

約数ペア:

[(1, 204037840), (2, 102018920), (4, 51009460), (5, 40807568), (8, 25504730), (10, 20403784), (16, 12752365), (20, 10201892), (40, 5100946), (80, 2550473), (89, 2292560), (178, 1146280), (356, 573140), (445, 458512), (712, 286570), (890, 229256), (1424, 143285), (1780, 114628), (3560, 57314), (7120, 28657)]