165620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2$

素因数の和:49

約数の個数: 54

約数和(自身を含む): 438102

約数和(自身を除く): 272482

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 338, 364, 455, 490, 637, 676, 845, 910, 980, 1183, 1274, 1690, 1820, 2366, 2548, 3185, 3380, 4732, 5915, 6370, 8281, 11830, 12740, 16562, 23660, 33124, 41405, 82810, 165620]

約数ペア:

[(1, 165620), (2, 82810), (4, 41405), (5, 33124), (7, 23660), (10, 16562), (13, 12740), (14, 11830), (20, 8281), (26, 6370), (28, 5915), (35, 4732), (49, 3380), (52, 3185), (65, 2548), (70, 2366), (91, 1820), (98, 1690), (130, 1274), (140, 1183), (169, 980), (182, 910), (196, 845), (245, 676), (260, 637), (338, 490), (364, 455)]