2220121265

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 2790712320

約数和(自身を除く): 570591055

約数列:

[1, 5, 31, 109, 155, 331, 397, 545, 1655, 1985, 3379, 10261, 12307, 16895, 36079, 43273, 51305, 61535, 131407, 180395, 216365, 657035, 1118449, 1341463, 4073617, 5592245, 6707315, 14323363, 20368085, 71616815, 444024253, 2220121265]

約数ペア:

[(1, 2220121265), (5, 444024253), (31, 71616815), (109, 20368085), (155, 14323363), (331, 6707315), (397, 5592245), (545, 4073617), (1655, 1341463), (1985, 1118449), (3379, 657035), (10261, 216365), (12307, 180395), (16895, 131407), (36079, 61535), (43273, 51305)]