2645320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1613}}^1$

素因数の和:1665

約数の個数: 32

約数和(自身を含む): 6100920

約数和(自身を除く): 3455600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1613, 1640, 3226, 6452, 8065, 12904, 16130, 32260, 64520, 66133, 132266, 264532, 330665, 529064, 661330, 1322660, 2645320]

約数ペア:

[(1, 2645320), (2, 1322660), (4, 661330), (5, 529064), (8, 330665), (10, 264532), (20, 132266), (40, 66133), (41, 64520), (82, 32260), (164, 16130), (205, 12904), (328, 8065), (410, 6452), (820, 3226), (1613, 1640)]