1949984240

素因数分解:

$2^4\times 5^1\times {\mathrm{3529}}^1\times {\mathrm{6907}}^1$

素因数の和:10449

約数の個数: 40

約数和(自身を含む): 4535654640

約数和(自身を除く): 2585670400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3529, 6907, 7058, 13814, 14116, 17645, 27628, 28232, 34535, 35290, 55256, 56464, 69070, 70580, 110512, 138140, 141160, 276280, 282320, 552560, 24374803, 48749606, 97499212, 121874015, 194998424, 243748030, 389996848, 487496060, 974992120, 1949984240]

約数ペア:

[(1, 1949984240), (2, 974992120), (4, 487496060), (5, 389996848), (8, 243748030), (10, 194998424), (16, 121874015), (20, 97499212), (40, 48749606), (80, 24374803), (3529, 552560), (6907, 282320), (7058, 276280), (13814, 141160), (14116, 138140), (17645, 110512), (27628, 70580), (28232, 69070), (34535, 56464), (35290, 55256)]