30918155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 40979520

約数和(自身を除く): 10061365

約数列:

[1, 5, 17, 61, 67, 85, 89, 305, 335, 445, 1037, 1139, 1513, 4087, 5185, 5429, 5695, 5963, 7565, 20435, 27145, 29815, 69479, 92293, 101371, 347395, 363743, 461465, 506855, 1818715, 6183631, 30918155]

約数ペア:

[(1, 30918155), (5, 6183631), (17, 1818715), (61, 506855), (67, 461465), (85, 363743), (89, 347395), (305, 101371), (335, 92293), (445, 69479), (1037, 29815), (1139, 27145), (1513, 20435), (4087, 7565), (5185, 5963), (5429, 5695)]