25260025

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 13308935

約数列:

[1, 5, 7, 19, 25, 35, 71, 95, 107, 133, 175, 355, 475, 497, 535, 665, 749, 1349, 1775, 2033, 2485, 2675, 3325, 3745, 6745, 7597, 9443, 10165, 12425, 14231, 18725, 33725, 37985, 47215, 50825, 53179, 71155, 144343, 189925, 236075, 265895, 355775, 721715, 1010401, 1329475, 3608575, 5052005, 25260025]

約数ペア:

[(1, 25260025), (5, 5052005), (7, 3608575), (19, 1329475), (25, 1010401), (35, 721715), (71, 355775), (95, 265895), (107, 236075), (133, 189925), (175, 144343), (355, 71155), (475, 53179), (497, 50825), (535, 47215), (665, 37985), (749, 33725), (1349, 18725), (1775, 14231), (2033, 12425), (2485, 10165), (2675, 9443), (3325, 7597), (3745, 6745)]