28770920

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2269}}^1$

素因数の和:2597

約数の個数: 32

約数和(自身を含む): 64967400

約数和(自身を除く): 36196480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2269, 2536, 3170, 4538, 6340, 9076, 11345, 12680, 18152, 22690, 45380, 90760, 719273, 1438546, 2877092, 3596365, 5754184, 7192730, 14385460, 28770920]

約数ペア:

[(1, 28770920), (2, 14385460), (4, 7192730), (5, 5754184), (8, 3596365), (10, 2877092), (20, 1438546), (40, 719273), (317, 90760), (634, 45380), (1268, 22690), (1585, 18152), (2269, 12680), (2536, 11345), (3170, 9076), (4538, 6340)]