165745515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{2141}}^1$

素因数の和:2559

約数の個数: 32

約数和(自身を含む): 286445376

約数和(自身を除く): 120699861

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 397, 1191, 1985, 2141, 5161, 5955, 6423, 10705, 15483, 25805, 27833, 32115, 77415, 83499, 139165, 417495, 849977, 2549931, 4249885, 11049701, 12749655, 33149103, 55248505, 165745515]

約数ペア:

[(1, 165745515), (3, 55248505), (5, 33149103), (13, 12749655), (15, 11049701), (39, 4249885), (65, 2549931), (195, 849977), (397, 417495), (1191, 139165), (1985, 83499), (2141, 77415), (5161, 32115), (5955, 27833), (6423, 25805), (10705, 15483)]