31557955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 17793725

約数列:

[1, 5, 11, 13, 19, 23, 55, 65, 95, 101, 115, 143, 209, 247, 253, 299, 437, 505, 715, 1045, 1111, 1235, 1265, 1313, 1495, 1919, 2185, 2323, 2717, 3289, 4807, 5555, 5681, 6565, 9595, 11615, 13585, 14443, 16445, 21109, 24035, 24947, 25553, 28405, 30199, 44137, 62491, 72215, 105545, 124735, 127765, 150995, 220685, 274417, 312455, 332189, 485507, 573781, 1372085, 1660945, 2427535, 2868905, 6311591, 31557955]

約数ペア:

[(1, 31557955), (5, 6311591), (11, 2868905), (13, 2427535), (19, 1660945), (23, 1372085), (55, 573781), (65, 485507), (95, 332189), (101, 312455), (115, 274417), (143, 220685), (209, 150995), (247, 127765), (253, 124735), (299, 105545), (437, 72215), (505, 62491), (715, 44137), (1045, 30199), (1111, 28405), (1235, 25553), (1265, 24947), (1313, 24035), (1495, 21109), (1919, 16445), (2185, 14443), (2323, 13585), (2717, 11615), (3289, 9595), (4807, 6565), (5555, 5681)]