51904975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 66870720

約数和(自身を除く): 14965745

約数列:

[1, 5, 25, 41, 79, 205, 395, 641, 1025, 1975, 3205, 3239, 16025, 16195, 26281, 50639, 80975, 131405, 253195, 657025, 1265975, 2076199, 10380995, 51904975]

約数ペア:

[(1, 51904975), (5, 10380995), (25, 2076199), (41, 1265975), (79, 657025), (205, 253195), (395, 131405), (641, 80975), (1025, 50639), (1975, 26281), (3205, 16195), (3239, 16025)]