20005937090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{284539}}^1$

素因数の和:284714

約数の個数: 32

約数和(自身を含む): 36876384000

約数和(自身を除く): 16870446910

約数列:

[1, 2, 5, 10, 79, 89, 158, 178, 395, 445, 790, 890, 7031, 14062, 35155, 70310, 284539, 569078, 1422695, 2845390, 22478581, 25323971, 44957162, 50647942, 112392905, 126619855, 224785810, 253239710, 2000593709, 4001187418, 10002968545, 20005937090]

約数ペア:

[(1, 20005937090), (2, 10002968545), (5, 4001187418), (10, 2000593709), (79, 253239710), (89, 224785810), (158, 126619855), (178, 112392905), (395, 50647942), (445, 44957162), (790, 25323971), (890, 22478581), (7031, 2845390), (14062, 1422695), (35155, 569078), (70310, 284539)]