217854340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{23029}}^1$

素因数の和:23092

約数の個数: 48

約数和(自身を含む): 510713280

約数和(自身を除く): 292858940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 23029, 46058, 92116, 115145, 230290, 253319, 460580, 506638, 990247, 1013276, 1266595, 1980494, 2533190, 3960988, 4951235, 5066380, 9902470, 10892717, 19804940, 21785434, 43570868, 54463585, 108927170, 217854340]

約数ペア:

[(1, 217854340), (2, 108927170), (4, 54463585), (5, 43570868), (10, 21785434), (11, 19804940), (20, 10892717), (22, 9902470), (43, 5066380), (44, 4951235), (55, 3960988), (86, 2533190), (110, 1980494), (172, 1266595), (215, 1013276), (220, 990247), (430, 506638), (473, 460580), (860, 253319), (946, 230290), (1892, 115145), (2365, 92116), (4730, 46058), (9460, 23029)]