39338920

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2003}}^1$

素因数の和:2505

約数の個数: 32

約数和(自身を含む): 88737120

約数和(自身を除く): 49398200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2003, 2455, 3928, 4006, 4910, 8012, 9820, 10015, 16024, 19640, 20030, 40060, 80120, 983473, 1966946, 3933892, 4917365, 7867784, 9834730, 19669460, 39338920]

約数ペア:

[(1, 39338920), (2, 19669460), (4, 9834730), (5, 7867784), (8, 4917365), (10, 3933892), (20, 1966946), (40, 983473), (491, 80120), (982, 40060), (1964, 20030), (2003, 19640), (2455, 16024), (3928, 10015), (4006, 9820), (4910, 8012)]