28931705

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 13298455

約数列:

[1, 5, 11, 17, 29, 55, 85, 97, 121, 145, 187, 319, 485, 493, 605, 935, 1067, 1595, 1649, 2057, 2465, 2813, 3509, 5335, 5423, 8245, 10285, 11737, 14065, 17545, 18139, 27115, 30943, 47821, 58685, 59653, 90695, 154715, 199529, 239105, 298265, 340373, 526031, 997645, 1701865, 2630155, 5786341, 28931705]

約数ペア:

[(1, 28931705), (5, 5786341), (11, 2630155), (17, 1701865), (29, 997645), (55, 526031), (85, 340373), (97, 298265), (121, 239105), (145, 199529), (187, 154715), (319, 90695), (485, 59653), (493, 58685), (605, 47821), (935, 30943), (1067, 27115), (1595, 18139), (1649, 17545), (2057, 14065), (2465, 11737), (2813, 10285), (3509, 8245), (5335, 5423)]