51779980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{641}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 124681536

約数和(自身を除く): 72901556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577, 641, 1154, 1282, 2308, 2564, 2885, 3205, 4039, 4487, 5770, 6410, 8078, 8974, 11540, 12820, 16156, 17948, 20195, 22435, 40390, 44870, 80780, 89740, 369857, 739714, 1479428, 1849285, 2588999, 3698570, 5177998, 7397140, 10355996, 12944995, 25889990, 51779980]

約数ペア:

[(1, 51779980), (2, 25889990), (4, 12944995), (5, 10355996), (7, 7397140), (10, 5177998), (14, 3698570), (20, 2588999), (28, 1849285), (35, 1479428), (70, 739714), (140, 369857), (577, 89740), (641, 80780), (1154, 44870), (1282, 40390), (2308, 22435), (2564, 20195), (2885, 17948), (3205, 16156), (4039, 12820), (4487, 11540), (5770, 8974), (6410, 8078)]