20382255

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17357265

約数列:

[1, 3, 5, 9, 15, 23, 45, 47, 69, 115, 141, 207, 235, 345, 419, 423, 705, 1035, 1081, 1257, 2095, 2115, 3243, 3771, 5405, 6285, 9637, 9729, 16215, 18855, 19693, 28911, 48185, 48645, 59079, 86733, 98465, 144555, 177237, 295395, 433665, 452939, 886185, 1358817, 2264695, 4076451, 6794085, 20382255]

約数ペア:

[(1, 20382255), (3, 6794085), (5, 4076451), (9, 2264695), (15, 1358817), (23, 886185), (45, 452939), (47, 433665), (69, 295395), (115, 177237), (141, 144555), (207, 98465), (235, 86733), (345, 59079), (419, 48645), (423, 48185), (705, 28911), (1035, 19693), (1081, 18855), (1257, 16215), (2095, 9729), (2115, 9637), (3243, 6285), (3771, 5405)]