19898889225

素因数分解:

$3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{18289}}^1$

素因数の和:18554

約数の個数: 48

約数和(自身を含む): 33475089600

約数和(自身を除く): 13576200375

約数列:

[1, 3, 5, 15, 25, 75, 89, 163, 267, 445, 489, 815, 1335, 2225, 2445, 4075, 6675, 12225, 14507, 18289, 43521, 54867, 72535, 91445, 217605, 274335, 362675, 457225, 1088025, 1371675, 1627721, 2981107, 4883163, 8138605, 8943321, 14905535, 24415815, 40693025, 44716605, 74527675, 122079075, 223583025, 265318523, 795955569, 1326592615, 3979777845, 6632963075, 19898889225]

約数ペア:

[(1, 19898889225), (3, 6632963075), (5, 3979777845), (15, 1326592615), (25, 795955569), (75, 265318523), (89, 223583025), (163, 122079075), (267, 74527675), (445, 44716605), (489, 40693025), (815, 24415815), (1335, 14905535), (2225, 8943321), (2445, 8138605), (4075, 4883163), (6675, 2981107), (12225, 1627721), (14507, 1371675), (18289, 1088025), (43521, 457225), (54867, 362675), (72535, 274335), (91445, 217605)]