20440905

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 13980855

約数列:

[1, 3, 5, 15, 23, 69, 115, 179, 331, 345, 537, 895, 993, 1655, 2685, 4117, 4965, 7613, 12351, 20585, 22839, 38065, 59249, 61755, 114195, 177747, 296245, 888735, 1362727, 4088181, 6813635, 20440905]

約数ペア:

[(1, 20440905), (3, 6813635), (5, 4088181), (15, 1362727), (23, 888735), (69, 296245), (115, 177747), (179, 114195), (331, 61755), (345, 59249), (537, 38065), (895, 22839), (993, 20585), (1655, 12351), (2685, 7613), (4117, 4965)]