81551204

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2088

約数の個数: 48

約数和(自身を含む): 172032000

約数和(自身を除く): 90480796

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 62, 94, 124, 188, 217, 329, 434, 658, 868, 1316, 1457, 1999, 2914, 3998, 5828, 7996, 10199, 13993, 20398, 27986, 40796, 55972, 61969, 93953, 123938, 187906, 247876, 375812, 433783, 657671, 867566, 1315342, 1735132, 2630684, 2912543, 5825086, 11650172, 20387801, 40775602, 81551204]

約数ペア:

[(1, 81551204), (2, 40775602), (4, 20387801), (7, 11650172), (14, 5825086), (28, 2912543), (31, 2630684), (47, 1735132), (62, 1315342), (94, 867566), (124, 657671), (188, 433783), (217, 375812), (329, 247876), (434, 187906), (658, 123938), (868, 93953), (1316, 61969), (1457, 55972), (1999, 40796), (2914, 27986), (3998, 20398), (5828, 13993), (7996, 10199)]