1989320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 4588920

約数和(自身を除く): 2599600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1213, 1640, 2426, 4852, 6065, 9704, 12130, 24260, 48520, 49733, 99466, 198932, 248665, 397864, 497330, 994660, 1989320]

約数ペア:

[(1, 1989320), (2, 994660), (4, 497330), (5, 397864), (8, 248665), (10, 198932), (20, 99466), (40, 49733), (41, 48520), (82, 24260), (164, 12130), (205, 9704), (328, 6065), (410, 4852), (820, 2426), (1213, 1640)]