201898975

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{641}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 257452272

約数和(自身を除く): 55553297

約数列:

[1, 5, 25, 43, 215, 293, 641, 1075, 1465, 3205, 7325, 12599, 16025, 27563, 62995, 137815, 187813, 314975, 689075, 939065, 4695325, 8075959, 40379795, 201898975]

約数ペア:

[(1, 201898975), (5, 40379795), (25, 8075959), (43, 4695325), (215, 939065), (293, 689075), (641, 314975), (1075, 187813), (1465, 137815), (3205, 62995), (7325, 27563), (12599, 16025)]