203811580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{207971}}^1$

素因数の和:207994

約数の個数: 36

約数和(自身を含む): 497884968

約数和(自身を除く): 294073388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 207971, 415942, 831884, 1039855, 1455797, 2079710, 2911594, 4159420, 5823188, 7278985, 10190579, 14557970, 20381158, 29115940, 40762316, 50952895, 101905790, 203811580]

約数ペア:

[(1, 203811580), (2, 101905790), (4, 50952895), (5, 40762316), (7, 29115940), (10, 20381158), (14, 14557970), (20, 10190579), (28, 7278985), (35, 5823188), (49, 4159420), (70, 2911594), (98, 2079710), (140, 1455797), (196, 1039855), (245, 831884), (490, 415942), (980, 207971)]