28901915

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{223}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 42364224

約数和(自身を除く): 13462309

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 223, 245, 529, 805, 1115, 1127, 1561, 2645, 3703, 5129, 5635, 7805, 10927, 18515, 25645, 25921, 35903, 54635, 117967, 129605, 179515, 251321, 589835, 825769, 1256605, 4128845, 5780383, 28901915]

約数ペア:

[(1, 28901915), (5, 5780383), (7, 4128845), (23, 1256605), (35, 825769), (49, 589835), (115, 251321), (161, 179515), (223, 129605), (245, 117967), (529, 54635), (805, 35903), (1115, 25921), (1127, 25645), (1561, 18515), (2645, 10927), (3703, 7805), (5129, 5635)]