1999890431

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 2618853120

約数和(自身を除く): 618962689

約数列:

[1, 7, 11, 29, 77, 89, 203, 319, 347, 623, 841, 979, 2233, 2429, 2581, 3817, 5887, 6853, 9251, 10063, 18067, 26719, 28391, 30883, 64757, 70441, 74849, 110693, 198737, 216181, 291827, 339713, 523943, 774851, 823339, 895607, 2042789, 2377991, 3210097, 5763373, 6269249, 9851677, 22470679, 25972603, 68961739, 181808221, 285698633, 1999890431]

約数ペア:

[(1, 1999890431), (7, 285698633), (11, 181808221), (29, 68961739), (77, 25972603), (89, 22470679), (203, 9851677), (319, 6269249), (347, 5763373), (623, 3210097), (841, 2377991), (979, 2042789), (2233, 895607), (2429, 823339), (2581, 774851), (3817, 523943), (5887, 339713), (6853, 291827), (9251, 216181), (10063, 198737), (18067, 110693), (26719, 74849), (28391, 70441), (30883, 64757)]