71002225

素因数分解:

$5^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:562

約数の個数: 36

約数和(自身を含む): 103369500

約数和(自身を除く): 32367275

約数列:

[1, 5, 7, 25, 35, 49, 149, 175, 245, 389, 745, 1043, 1225, 1945, 2723, 3725, 5215, 7301, 9725, 13615, 19061, 26075, 36505, 57961, 68075, 95305, 182525, 289805, 405727, 476525, 1449025, 2028635, 2840089, 10143175, 14200445, 71002225]

約数ペア:

[(1, 71002225), (5, 14200445), (7, 10143175), (25, 2840089), (35, 2028635), (49, 1449025), (149, 476525), (175, 405727), (245, 289805), (389, 182525), (745, 95305), (1043, 68075), (1225, 57961), (1945, 36505), (2723, 26075), (3725, 19061), (5215, 13615), (7301, 9725)]