1640808638

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1\times {\mathrm{9419}}^1$

素因数の和:9992

約数の個数: 32

約数和(自身を含む): 2940848640

約数和(自身を除く): 1300040002

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 541, 1082, 3787, 7574, 9419, 12443, 18838, 24886, 65933, 87101, 131866, 174202, 216637, 433274, 1516459, 3032918, 5095679, 10191358, 35669753, 71339506, 117200617, 234401234, 820404319, 1640808638]

約数ペア:

[(1, 1640808638), (2, 820404319), (7, 234401234), (14, 117200617), (23, 71339506), (46, 35669753), (161, 10191358), (322, 5095679), (541, 3032918), (1082, 1516459), (3787, 433274), (7574, 216637), (9419, 174202), (12443, 131866), (18838, 87101), (24886, 65933)]