20951140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8803}}^1$

素因数の和:8836

約数の個数: 48

約数和(自身を含む): 53246592

約数和(自身を除く): 32295452

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8803, 17606, 35212, 44015, 61621, 88030, 123242, 149651, 176060, 246484, 299302, 308105, 598604, 616210, 748255, 1047557, 1232420, 1496510, 2095114, 2993020, 4190228, 5237785, 10475570, 20951140]

約数ペア:

[(1, 20951140), (2, 10475570), (4, 5237785), (5, 4190228), (7, 2993020), (10, 2095114), (14, 1496510), (17, 1232420), (20, 1047557), (28, 748255), (34, 616210), (35, 598604), (68, 308105), (70, 299302), (85, 246484), (119, 176060), (140, 149651), (170, 123242), (238, 88030), (340, 61621), (476, 44015), (595, 35212), (1190, 17606), (2380, 8803)]