138440415

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2271

約数の個数: 32

約数和(自身を含む): 228413952

約数和(自身を除く): 89973537

約数列:

[1, 3, 5, 15, 61, 71, 183, 213, 305, 355, 915, 1065, 2131, 4331, 6393, 10655, 12993, 21655, 31965, 64965, 129991, 151301, 389973, 453903, 649955, 756505, 1949865, 2269515, 9229361, 27688083, 46146805, 138440415]

約数ペア:

[(1, 138440415), (3, 46146805), (5, 27688083), (15, 9229361), (61, 2269515), (71, 1949865), (183, 756505), (213, 649955), (305, 453903), (355, 389973), (915, 151301), (1065, 129991), (2131, 64965), (4331, 31965), (6393, 21655), (10655, 12993)]