15789385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 21086208

約数和(自身を除く): 5296823

約数列:

[1, 5, 23, 31, 43, 103, 115, 155, 215, 515, 713, 989, 1333, 2369, 3193, 3565, 4429, 4945, 6665, 11845, 15965, 22145, 30659, 73439, 101867, 137299, 153295, 367195, 509335, 686495, 3157877, 15789385]

約数ペア:

[(1, 15789385), (5, 3157877), (23, 686495), (31, 509335), (43, 367195), (103, 153295), (115, 137299), (155, 101867), (215, 73439), (515, 30659), (713, 22145), (989, 15965), (1333, 11845), (2369, 6665), (3193, 4945), (3565, 4429)]