20004340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24992780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 863, 1159, 1220, 1726, 2318, 3452, 4315, 4636, 5795, 8630, 11590, 16397, 17260, 23180, 32794, 52643, 65588, 81985, 105286, 163970, 210572, 263215, 327940, 526430, 1000217, 1052860, 2000434, 4000868, 5001085, 10002170, 20004340]

約数ペア:

[(1, 20004340), (2, 10002170), (4, 5001085), (5, 4000868), (10, 2000434), (19, 1052860), (20, 1000217), (38, 526430), (61, 327940), (76, 263215), (95, 210572), (122, 163970), (190, 105286), (244, 81985), (305, 65588), (380, 52643), (610, 32794), (863, 23180), (1159, 17260), (1220, 16397), (1726, 11590), (2318, 8630), (3452, 5795), (4315, 4636)]