1868555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 32

約数和(自身を含む): 2721600

約数和(自身を除く): 853045

約数列:

[1, 5, 13, 17, 19, 65, 85, 89, 95, 221, 247, 323, 445, 1105, 1157, 1235, 1513, 1615, 1691, 4199, 5785, 7565, 8455, 19669, 20995, 21983, 28747, 98345, 109915, 143735, 373711, 1868555]

約数ペア:

[(1, 1868555), (5, 373711), (13, 143735), (17, 109915), (19, 98345), (65, 28747), (85, 21983), (89, 20995), (95, 19669), (221, 8455), (247, 7565), (323, 5785), (445, 4199), (1105, 1691), (1157, 1615), (1235, 1513)]