421861975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 569963520

約数和(自身を除く): 148101545

約数列:

[1, 5, 23, 25, 37, 79, 115, 185, 251, 395, 575, 851, 925, 1255, 1817, 1975, 2923, 4255, 5773, 6275, 9085, 9287, 14615, 19829, 21275, 28865, 45425, 46435, 67229, 73075, 99145, 144325, 213601, 232175, 336145, 456067, 495725, 733673, 1068005, 1680725, 2280335, 3668365, 5340025, 11401675, 16874479, 18341825, 84372395, 421861975]

約数ペア:

[(1, 421861975), (5, 84372395), (23, 18341825), (25, 16874479), (37, 11401675), (79, 5340025), (115, 3668365), (185, 2280335), (251, 1680725), (395, 1068005), (575, 733673), (851, 495725), (925, 456067), (1255, 336145), (1817, 232175), (1975, 213601), (2923, 144325), (4255, 99145), (5773, 73075), (6275, 67229), (9085, 46435), (9287, 45425), (14615, 28865), (19829, 21275)]