20800155

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1237}}^1$

素因数の和:1323

約数の個数: 32

約数和(自身を含む): 35654400

約数和(自身を除く): 14854245

約数列:

[1, 3, 5, 15, 19, 57, 59, 95, 177, 285, 295, 885, 1121, 1237, 3363, 3711, 5605, 6185, 16815, 18555, 23503, 70509, 72983, 117515, 218949, 352545, 364915, 1094745, 1386677, 4160031, 6933385, 20800155]

約数ペア:

[(1, 20800155), (3, 6933385), (5, 4160031), (15, 1386677), (19, 1094745), (57, 364915), (59, 352545), (95, 218949), (177, 117515), (285, 72983), (295, 70509), (885, 23503), (1121, 18555), (1237, 16815), (3363, 6185), (3711, 5605)]