3965840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:659

約数の個数: 40

約数和(自身を含む): 9340920

約数和(自身を除く): 5375080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 557, 712, 890, 1114, 1424, 1780, 2228, 2785, 3560, 4456, 5570, 7120, 8912, 11140, 22280, 44560, 49573, 99146, 198292, 247865, 396584, 495730, 793168, 991460, 1982920, 3965840]

約数ペア:

[(1, 3965840), (2, 1982920), (4, 991460), (5, 793168), (8, 495730), (10, 396584), (16, 247865), (20, 198292), (40, 99146), (80, 49573), (89, 44560), (178, 22280), (356, 11140), (445, 8912), (557, 7120), (712, 5570), (890, 4456), (1114, 3560), (1424, 2785), (1780, 2228)]