20282900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18439}}^1$

素因数の和:18464

約数の個数: 36

約数和(自身を含む): 48017760

約数和(自身を除く): 27734860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18439, 36878, 73756, 92195, 184390, 202829, 368780, 405658, 460975, 811316, 921950, 1014145, 1843900, 2028290, 4056580, 5070725, 10141450, 20282900]

約数ペア:

[(1, 20282900), (2, 10141450), (4, 5070725), (5, 4056580), (10, 2028290), (11, 1843900), (20, 1014145), (22, 921950), (25, 811316), (44, 460975), (50, 405658), (55, 368780), (100, 202829), (110, 184390), (220, 92195), (275, 73756), (550, 36878), (1100, 18439)]