55120720

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1237}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 128489544

約数和(自身を除く): 73368824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 1237, 2228, 2474, 2785, 4456, 4948, 5570, 6185, 8912, 9896, 11140, 12370, 19792, 22280, 24740, 44560, 49480, 98960, 689009, 1378018, 2756036, 3445045, 5512072, 6890090, 11024144, 13780180, 27560360, 55120720]

約数ペア:

[(1, 55120720), (2, 27560360), (4, 13780180), (5, 11024144), (8, 6890090), (10, 5512072), (16, 3445045), (20, 2756036), (40, 1378018), (80, 689009), (557, 98960), (1114, 49480), (1237, 44560), (2228, 24740), (2474, 22280), (2785, 19792), (4456, 12370), (4948, 11140), (5570, 9896), (6185, 8912)]