145725725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 200880000

約数和(自身を除く): 55154275

約数列:

[1, 5, 19, 25, 29, 71, 95, 145, 149, 355, 475, 551, 725, 745, 1349, 1775, 2059, 2755, 2831, 3725, 4321, 6745, 10295, 10579, 13775, 14155, 21605, 33725, 39121, 51475, 52895, 70775, 82099, 108025, 195605, 201001, 264475, 306791, 410495, 978025, 1005005, 1533955, 2052475, 5025025, 5829029, 7669775, 29145145, 145725725]

約数ペア:

[(1, 145725725), (5, 29145145), (19, 7669775), (25, 5829029), (29, 5025025), (71, 2052475), (95, 1533955), (145, 1005005), (149, 978025), (355, 410495), (475, 306791), (551, 264475), (725, 201001), (745, 195605), (1349, 108025), (1775, 82099), (2059, 70775), (2755, 52895), (2831, 51475), (3725, 39121), (4321, 33725), (6745, 21605), (10295, 14155), (10579, 13775)]