90816460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648689}}^1$

素因数の和:648705

約数の個数: 24

約数和(自身を含む): 217959840

約数和(自身を除く): 127143380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648689, 1297378, 2594756, 3243445, 4540823, 6486890, 9081646, 12973780, 18163292, 22704115, 45408230, 90816460]

約数ペア:

[(1, 90816460), (2, 45408230), (4, 22704115), (5, 18163292), (7, 12973780), (10, 9081646), (14, 6486890), (20, 4540823), (28, 3243445), (35, 2594756), (70, 1297378), (140, 648689)]