808260520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1\times {\mathrm{1033}}^1$

素因数の和:1706

約数の個数: 64

約数和(自身を含む): 1882045440

約数和(自身を除く): 1073784920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 631, 1033, 1240, 1262, 2066, 2524, 3155, 4132, 5048, 5165, 6310, 8264, 10330, 12620, 19561, 20660, 25240, 32023, 39122, 41320, 64046, 78244, 97805, 128092, 156488, 160115, 195610, 256184, 320230, 391220, 640460, 651823, 782440, 1280920, 1303646, 2607292, 3259115, 5214584, 6518230, 13036460, 20206513, 26072920, 40413026, 80826052, 101032565, 161652104, 202065130, 404130260, 808260520]

約数ペア:

[(1, 808260520), (2, 404130260), (4, 202065130), (5, 161652104), (8, 101032565), (10, 80826052), (20, 40413026), (31, 26072920), (40, 20206513), (62, 13036460), (124, 6518230), (155, 5214584), (248, 3259115), (310, 2607292), (620, 1303646), (631, 1280920), (1033, 782440), (1240, 651823), (1262, 640460), (2066, 391220), (2524, 320230), (3155, 256184), (4132, 195610), (5048, 160115), (5165, 156488), (6310, 128092), (8264, 97805), (10330, 78244), (12620, 64046), (19561, 41320), (20660, 39122), (25240, 32023)]