8408240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1723}}^1$

素因数の和:1797

約数の個数: 40

約数和(自身を含む): 19881168

約数和(自身を除く): 11472928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1723, 2440, 3446, 4880, 6892, 8615, 13784, 17230, 27568, 34460, 68920, 105103, 137840, 210206, 420412, 525515, 840824, 1051030, 1681648, 2102060, 4204120, 8408240]

約数ペア:

[(1, 8408240), (2, 4204120), (4, 2102060), (5, 1681648), (8, 1051030), (10, 840824), (16, 525515), (20, 420412), (40, 210206), (61, 137840), (80, 105103), (122, 68920), (244, 34460), (305, 27568), (488, 17230), (610, 13784), (976, 8615), (1220, 6892), (1723, 4880), (2440, 3446)]