668840356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{144271}}^1$

素因数の和:144355

約数の個数: 24

約数和(自身を含む): 1252280960

約数和(自身を除く): 583440604

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 144271, 288542, 577084, 2741149, 5482298, 8800531, 10964596, 17601062, 35202124, 167210089, 334420178, 668840356]

約数ペア:

[(1, 668840356), (2, 334420178), (4, 167210089), (19, 35202124), (38, 17601062), (61, 10964596), (76, 8800531), (122, 5482298), (244, 2741149), (1159, 577084), (2318, 288542), (4636, 144271)]