268347760

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8623}}^1$

素因数の和:9025

約数の個数: 40

約数和(自身を含む): 625584960

約数和(自身を除く): 357237200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 8623, 15560, 17246, 31120, 34492, 43115, 68984, 86230, 137968, 172460, 344920, 689840, 3354347, 6708694, 13417388, 16771735, 26834776, 33543470, 53669552, 67086940, 134173880, 268347760]

約数ペア:

[(1, 268347760), (2, 134173880), (4, 67086940), (5, 53669552), (8, 33543470), (10, 26834776), (16, 16771735), (20, 13417388), (40, 6708694), (80, 3354347), (389, 689840), (778, 344920), (1556, 172460), (1945, 137968), (3112, 86230), (3890, 68984), (6224, 43115), (7780, 34492), (8623, 31120), (15560, 17246)]