388443380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{7741}}^1$

素因数の和:7956

約数の個数: 48

約数和(自身を含む): 883145424

約数和(自身を除く): 494702044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 193, 260, 386, 772, 965, 1930, 2509, 3860, 5018, 7741, 10036, 12545, 15482, 25090, 30964, 38705, 50180, 77410, 100633, 154820, 201266, 402532, 503165, 1006330, 1494013, 2012660, 2988026, 5976052, 7470065, 14940130, 19422169, 29880260, 38844338, 77688676, 97110845, 194221690, 388443380]

約数ペア:

[(1, 388443380), (2, 194221690), (4, 97110845), (5, 77688676), (10, 38844338), (13, 29880260), (20, 19422169), (26, 14940130), (52, 7470065), (65, 5976052), (130, 2988026), (193, 2012660), (260, 1494013), (386, 1006330), (772, 503165), (965, 402532), (1930, 201266), (2509, 154820), (3860, 100633), (5018, 77410), (7741, 50180), (10036, 38705), (12545, 30964), (15482, 25090)]