90890140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{13327}}^1$

素因数の和:13378

約数の個数: 48

約数和(自身を含む): 214953984

約数和(自身を除く): 124063844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 13327, 26654, 53308, 66635, 133270, 146597, 266540, 293194, 413137, 586388, 732985, 826274, 1465970, 1652548, 2065685, 2931940, 4131370, 4544507, 8262740, 9089014, 18178028, 22722535, 45445070, 90890140]

約数ペア:

[(1, 90890140), (2, 45445070), (4, 22722535), (5, 18178028), (10, 9089014), (11, 8262740), (20, 4544507), (22, 4131370), (31, 2931940), (44, 2065685), (55, 1652548), (62, 1465970), (110, 826274), (124, 732985), (155, 586388), (220, 413137), (310, 293194), (341, 266540), (620, 146597), (682, 133270), (1364, 66635), (1705, 53308), (3410, 26654), (6820, 13327)]