19755525

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 15242235

約数列:

[1, 3, 5, 15, 25, 29, 31, 75, 87, 93, 145, 155, 293, 435, 465, 725, 775, 879, 899, 1465, 2175, 2325, 2697, 4395, 4495, 7325, 8497, 9083, 13485, 21975, 22475, 25491, 27249, 42485, 45415, 67425, 127455, 136245, 212425, 227075, 263407, 637275, 681225, 790221, 1317035, 3951105, 6585175, 19755525]

約数ペア:

[(1, 19755525), (3, 6585175), (5, 3951105), (15, 1317035), (25, 790221), (29, 681225), (31, 637275), (75, 263407), (87, 227075), (93, 212425), (145, 136245), (155, 127455), (293, 67425), (435, 45415), (465, 42485), (725, 27249), (775, 25491), (879, 22475), (899, 21975), (1465, 13485), (2175, 9083), (2325, 8497), (2697, 7325), (4395, 4495)]