81352240

素因数分解:

$2^4\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1511}}^1$

素因数の和:2197

約数の個数: 40

約数和(自身を含む): 189550368

約数和(自身を除く): 108198128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 673, 1346, 1511, 2692, 3022, 3365, 5384, 6044, 6730, 7555, 10768, 12088, 13460, 15110, 24176, 26920, 30220, 53840, 60440, 120880, 1016903, 2033806, 4067612, 5084515, 8135224, 10169030, 16270448, 20338060, 40676120, 81352240]

約数ペア:

[(1, 81352240), (2, 40676120), (4, 20338060), (5, 16270448), (8, 10169030), (10, 8135224), (16, 5084515), (20, 4067612), (40, 2033806), (80, 1016903), (673, 120880), (1346, 60440), (1511, 53840), (2692, 30220), (3022, 26920), (3365, 24176), (5384, 15110), (6044, 13460), (6730, 12088), (7555, 10768)]