31318525

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 47996928

約数和(自身を除く): 16678403

約数列:

[1, 5, 7, 23, 25, 31, 35, 115, 155, 161, 175, 217, 251, 575, 713, 775, 805, 1085, 1255, 1757, 3565, 4025, 4991, 5425, 5773, 6275, 7781, 8785, 17825, 24955, 28865, 38905, 40411, 43925, 54467, 124775, 144325, 178963, 194525, 202055, 272335, 894815, 1010275, 1252741, 1361675, 4474075, 6263705, 31318525]

約数ペア:

[(1, 31318525), (5, 6263705), (7, 4474075), (23, 1361675), (25, 1252741), (31, 1010275), (35, 894815), (115, 272335), (155, 202055), (161, 194525), (175, 178963), (217, 144325), (251, 124775), (575, 54467), (713, 43925), (775, 40411), (805, 38905), (1085, 28865), (1255, 24955), (1757, 17825), (3565, 8785), (4025, 7781), (4991, 6275), (5425, 5773)]