80970175

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 124679520

約数和(自身を除く): 43709345

約数列:

[1, 5, 11, 13, 25, 29, 55, 65, 71, 121, 143, 145, 275, 319, 325, 355, 377, 605, 715, 725, 781, 923, 1573, 1595, 1775, 1885, 2059, 3025, 3509, 3575, 3905, 4147, 4615, 7865, 7975, 8591, 9425, 10153, 10295, 17545, 19525, 20735, 22649, 23075, 26767, 39325, 42955, 45617, 50765, 51475, 87725, 103675, 111683, 113245, 133835, 214775, 228085, 249139, 253825, 294437, 558415, 566225, 669175, 1140425, 1245695, 1472185, 2792075, 3238807, 6228475, 7360925, 16194035, 80970175]

約数ペア:

[(1, 80970175), (5, 16194035), (11, 7360925), (13, 6228475), (25, 3238807), (29, 2792075), (55, 1472185), (65, 1245695), (71, 1140425), (121, 669175), (143, 566225), (145, 558415), (275, 294437), (319, 253825), (325, 249139), (355, 228085), (377, 214775), (605, 133835), (715, 113245), (725, 111683), (781, 103675), (923, 87725), (1573, 51475), (1595, 50765), (1775, 45617), (1885, 42955), (2059, 39325), (3025, 26767), (3509, 23075), (3575, 22649), (3905, 20735), (4147, 19525), (4615, 17545), (7865, 10295), (7975, 10153), (8591, 9425)]