19858580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1709}}^1$

素因数の和:1808

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 28404460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 1709, 2324, 2905, 3418, 5810, 6836, 8545, 11620, 11963, 17090, 23926, 34180, 47852, 59815, 119630, 141847, 239260, 283694, 567388, 709235, 992929, 1418470, 1985858, 2836940, 3971716, 4964645, 9929290, 19858580]

約数ペア:

[(1, 19858580), (2, 9929290), (4, 4964645), (5, 3971716), (7, 2836940), (10, 1985858), (14, 1418470), (20, 992929), (28, 709235), (35, 567388), (70, 283694), (83, 239260), (140, 141847), (166, 119630), (332, 59815), (415, 47852), (581, 34180), (830, 23926), (1162, 17090), (1660, 11963), (1709, 11620), (2324, 8545), (2905, 6836), (3418, 5810)]