20735775

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:760

約数の個数: 36

約数和(自身を含む): 37440312

約数和(自身を除く): 16704537

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 587, 785, 1413, 1761, 2355, 2935, 3925, 5283, 7065, 8805, 11775, 14675, 26415, 35325, 44025, 92159, 132075, 276477, 460795, 829431, 1382385, 2303975, 4147155, 6911925, 20735775]

約数ペア:

[(1, 20735775), (3, 6911925), (5, 4147155), (9, 2303975), (15, 1382385), (25, 829431), (45, 460795), (75, 276477), (157, 132075), (225, 92159), (471, 44025), (587, 35325), (785, 26415), (1413, 14675), (1761, 11775), (2355, 8805), (2935, 7065), (3925, 5283)]