51889285

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 77811840

約数和(自身を除く): 25922555

約数列:

[1, 5, 7, 19, 35, 49, 71, 95, 133, 157, 245, 355, 497, 665, 785, 931, 1099, 1349, 2485, 2983, 3479, 4655, 5495, 6745, 7693, 9443, 11147, 14915, 17395, 20881, 38465, 47215, 55735, 66101, 78029, 104405, 146167, 211793, 330505, 390145, 546203, 730835, 1058965, 1482551, 2731015, 7412755, 10377857, 51889285]

約数ペア:

[(1, 51889285), (5, 10377857), (7, 7412755), (19, 2731015), (35, 1482551), (49, 1058965), (71, 730835), (95, 546203), (133, 390145), (157, 330505), (245, 211793), (355, 146167), (497, 104405), (665, 78029), (785, 66101), (931, 55735), (1099, 47215), (1349, 38465), (2485, 20881), (2983, 17395), (3479, 14915), (4655, 11147), (5495, 9443), (6745, 7693)]