31260945

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 51321600

約数和(自身を除く): 20060655

約数列:

[1, 3, 5, 15, 71, 149, 197, 213, 355, 447, 591, 745, 985, 1065, 2235, 2955, 10579, 13987, 29353, 31737, 41961, 52895, 69935, 88059, 146765, 158685, 209805, 440295, 2084063, 6252189, 10420315, 31260945]

約数ペア:

[(1, 31260945), (3, 10420315), (5, 6252189), (15, 2084063), (71, 440295), (149, 209805), (197, 158685), (213, 146765), (355, 88059), (447, 69935), (591, 52895), (745, 41961), (985, 31737), (1065, 29353), (2235, 13987), (2955, 10579)]