18761115

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 15453285

約数列:

[1, 3, 5, 15, 17, 29, 43, 51, 59, 85, 87, 129, 145, 177, 215, 255, 295, 435, 493, 645, 731, 885, 1003, 1247, 1479, 1711, 2193, 2465, 2537, 3009, 3655, 3741, 5015, 5133, 6235, 7395, 7611, 8555, 10965, 12685, 15045, 18705, 21199, 25665, 29087, 38055, 43129, 63597, 73573, 87261, 105995, 129387, 145435, 215645, 220719, 317985, 367865, 436305, 646935, 1103595, 1250741, 3752223, 6253705, 18761115]

約数ペア:

[(1, 18761115), (3, 6253705), (5, 3752223), (15, 1250741), (17, 1103595), (29, 646935), (43, 436305), (51, 367865), (59, 317985), (85, 220719), (87, 215645), (129, 145435), (145, 129387), (177, 105995), (215, 87261), (255, 73573), (295, 63597), (435, 43129), (493, 38055), (645, 29087), (731, 25665), (885, 21199), (1003, 18705), (1247, 15045), (1479, 12685), (1711, 10965), (2193, 8555), (2465, 7611), (2537, 7395), (3009, 6235), (3655, 5133), (3741, 5015)]