20537490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1361}}^1$

素因数の和:1874

約数の個数: 32

約数和(自身を含む): 49424256

約数和(自身を除く): 28886766

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 503, 1006, 1361, 1509, 2515, 2722, 3018, 4083, 5030, 6805, 7545, 8166, 13610, 15090, 20415, 40830, 684583, 1369166, 2053749, 3422915, 4107498, 6845830, 10268745, 20537490]

約数ペア:

[(1, 20537490), (2, 10268745), (3, 6845830), (5, 4107498), (6, 3422915), (10, 2053749), (15, 1369166), (30, 684583), (503, 40830), (1006, 20415), (1361, 15090), (1509, 13610), (2515, 8166), (2722, 7545), (3018, 6805), (4083, 5030)]