388585520

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{21211}}^1$

素因数の和:21453

約数の個数: 40

約数和(自身を含む): 907449360

約数和(自身を除く): 518863840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1145, 1832, 2290, 3664, 4580, 9160, 18320, 21211, 42422, 84844, 106055, 169688, 212110, 339376, 424220, 848440, 1696880, 4857319, 9714638, 19429276, 24286595, 38858552, 48573190, 77717104, 97146380, 194292760, 388585520]

約数ペア:

[(1, 388585520), (2, 194292760), (4, 97146380), (5, 77717104), (8, 48573190), (10, 38858552), (16, 24286595), (20, 19429276), (40, 9714638), (80, 4857319), (229, 1696880), (458, 848440), (916, 424220), (1145, 339376), (1832, 212110), (2290, 169688), (3664, 106055), (4580, 84844), (9160, 42422), (18320, 21211)]