1646247890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{2383}}^1$

素因数の和:2607

約数の個数: 64

約数和(自身を含む): 3460423680

約数和(自身を除く): 1814175790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 139, 142, 278, 355, 497, 695, 710, 973, 994, 1390, 1946, 2383, 2485, 4766, 4865, 4970, 9730, 9869, 11915, 16681, 19738, 23830, 33362, 49345, 69083, 83405, 98690, 138166, 166810, 169193, 331237, 338386, 345415, 662474, 690830, 845965, 1184351, 1656185, 1691930, 2318659, 2368702, 3312370, 4637318, 5921755, 11593295, 11843510, 23186590, 23517827, 47035654, 117589135, 164624789, 235178270, 329249578, 823123945, 1646247890]

約数ペア:

[(1, 1646247890), (2, 823123945), (5, 329249578), (7, 235178270), (10, 164624789), (14, 117589135), (35, 47035654), (70, 23517827), (71, 23186590), (139, 11843510), (142, 11593295), (278, 5921755), (355, 4637318), (497, 3312370), (695, 2368702), (710, 2318659), (973, 1691930), (994, 1656185), (1390, 1184351), (1946, 845965), (2383, 690830), (2485, 662474), (4766, 345415), (4865, 338386), (4970, 331237), (9730, 169193), (9869, 166810), (11915, 138166), (16681, 98690), (19738, 83405), (23830, 69083), (33362, 49345)]