1980504780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{16529}}^1$

素因数の和:18538

約数の個数: 48

約数和(自身を含む): 5548525920

約数和(自身を除く): 3568021140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1997, 3994, 5991, 7988, 9985, 11982, 16529, 19970, 23964, 29955, 33058, 39940, 49587, 59910, 66116, 82645, 99174, 119820, 165290, 198348, 247935, 330580, 495870, 991740, 33008413, 66016826, 99025239, 132033652, 165042065, 198050478, 330084130, 396100956, 495126195, 660168260, 990252390, 1980504780]

約数ペア:

[(1, 1980504780), (2, 990252390), (3, 660168260), (4, 495126195), (5, 396100956), (6, 330084130), (10, 198050478), (12, 165042065), (15, 132033652), (20, 99025239), (30, 66016826), (60, 33008413), (1997, 991740), (3994, 495870), (5991, 330580), (7988, 247935), (9985, 198348), (11982, 165290), (16529, 119820), (19970, 99174), (23964, 82645), (29955, 66116), (33058, 59910), (39940, 49587)]