189609860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{7907}}^1$

素因数の和:8036

約数の個数: 48

約数和(自身を含む): 438419520

約数和(自身を除く): 248809660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 7907, 11990, 15814, 23980, 31628, 39535, 79070, 86977, 158140, 173954, 347908, 434885, 861863, 869770, 1723726, 1739540, 3447452, 4309315, 8618630, 9480493, 17237260, 18960986, 37921972, 47402465, 94804930, 189609860]

約数ペア:

[(1, 189609860), (2, 94804930), (4, 47402465), (5, 37921972), (10, 18960986), (11, 17237260), (20, 9480493), (22, 8618630), (44, 4309315), (55, 3447452), (109, 1739540), (110, 1723726), (218, 869770), (220, 861863), (436, 434885), (545, 347908), (1090, 173954), (1199, 158140), (2180, 86977), (2398, 79070), (4796, 39535), (5995, 31628), (7907, 23980), (11990, 15814)]