172840515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{3191}}^1$

素因数の和:3379

約数の個数: 32

約数和(自身を含む): 290497536

約数和(自身を除く): 117657021

約数列:

[1, 3, 5, 15, 23, 69, 115, 157, 345, 471, 785, 2355, 3191, 3611, 9573, 10833, 15955, 18055, 47865, 54165, 73393, 220179, 366965, 500987, 1100895, 1502961, 2504935, 7514805, 11522701, 34568103, 57613505, 172840515]

約数ペア:

[(1, 172840515), (3, 57613505), (5, 34568103), (15, 11522701), (23, 7514805), (69, 2504935), (115, 1502961), (157, 1100895), (345, 500987), (471, 366965), (785, 220179), (2355, 73393), (3191, 54165), (3611, 47865), (9573, 18055), (10833, 15955)]