161955

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 290160

約数和(自身を除く): 128205

約数列:

[1, 3, 5, 9, 15, 45, 59, 61, 177, 183, 295, 305, 531, 549, 885, 915, 2655, 2745, 3599, 10797, 17995, 32391, 53985, 161955]

約数ペア:

[(1, 161955), (3, 53985), (5, 32391), (9, 17995), (15, 10797), (45, 3599), (59, 2745), (61, 2655), (177, 915), (183, 885), (295, 549), (305, 531)]