19999008

素因数分解:

$2^5\times 3^3\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 59270400

約数和(自身を除く): 39271392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 79, 96, 108, 144, 158, 216, 237, 288, 293, 316, 432, 474, 586, 632, 711, 864, 879, 948, 1172, 1264, 1422, 1758, 1896, 2133, 2344, 2528, 2637, 2844, 3516, 3792, 4266, 4688, 5274, 5688, 7032, 7584, 7911, 8532, 9376, 10548, 11376, 14064, 15822, 17064, 21096, 22752, 23147, 28128, 31644, 34128, 42192, 46294, 63288, 68256, 69441, 84384, 92588, 126576, 138882, 185176, 208323, 253152, 277764, 370352, 416646, 555528, 624969, 740704, 833292, 1111056, 1249938, 1666584, 2222112, 2499876, 3333168, 4999752, 6666336, 9999504, 19999008]

約数ペア:

[(1, 19999008), (2, 9999504), (3, 6666336), (4, 4999752), (6, 3333168), (8, 2499876), (9, 2222112), (12, 1666584), (16, 1249938), (18, 1111056), (24, 833292), (27, 740704), (32, 624969), (36, 555528), (48, 416646), (54, 370352), (72, 277764), (79, 253152), (96, 208323), (108, 185176), (144, 138882), (158, 126576), (216, 92588), (237, 84384), (288, 69441), (293, 68256), (316, 63288), (432, 46294), (474, 42192), (586, 34128), (632, 31644), (711, 28128), (864, 23147), (879, 22752), (948, 21096), (1172, 17064), (1264, 15822), (1422, 14064), (1758, 11376), (1896, 10548), (2133, 9376), (2344, 8532), (2528, 7911), (2637, 7584), (2844, 7032), (3516, 5688), (3792, 5274), (4266, 4688)]