27921425

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 36

約数和(自身を含む): 42068736

約数和(自身を除く): 14147311

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 805, 991, 1127, 1225, 4025, 4955, 5635, 6937, 22793, 24775, 28175, 34685, 48559, 113965, 159551, 173425, 242795, 569825, 797755, 1116857, 1213975, 3988775, 5584285, 27921425]

約数ペア:

[(1, 27921425), (5, 5584285), (7, 3988775), (23, 1213975), (25, 1116857), (35, 797755), (49, 569825), (115, 242795), (161, 173425), (175, 159551), (245, 113965), (575, 48559), (805, 34685), (991, 28175), (1127, 24775), (1225, 22793), (4025, 6937), (4955, 5635)]