161415691985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 210586521600

約数和(自身を除く): 49170829615

約数列:

[1, 5, 17, 61, 85, 191, 305, 389, 419, 955, 1037, 1945, 2095, 3247, 5185, 6613, 7123, 11651, 16235, 23729, 25559, 33065, 35615, 58255, 74299, 80029, 118645, 127795, 162991, 198067, 371495, 400145, 403393, 434503, 814955, 990335, 1263083, 1360493, 2016965, 2172515, 2770847, 4532239, 4881769, 6315415, 6802465, 9942451, 13854235, 22661195, 24408845, 31131281, 49712255, 77048063, 82990073, 155656405, 169021667, 385240315, 414950365, 529231777, 845108335, 1899008141, 2646158885, 9495040705, 32283138397, 161415691985]

約数ペア:

[(1, 161415691985), (5, 32283138397), (17, 9495040705), (61, 2646158885), (85, 1899008141), (191, 845108335), (305, 529231777), (389, 414950365), (419, 385240315), (955, 169021667), (1037, 155656405), (1945, 82990073), (2095, 77048063), (3247, 49712255), (5185, 31131281), (6613, 24408845), (7123, 22661195), (11651, 13854235), (16235, 9942451), (23729, 6802465), (25559, 6315415), (33065, 4881769), (35615, 4532239), (58255, 2770847), (74299, 2172515), (80029, 2016965), (118645, 1360493), (127795, 1263083), (162991, 990335), (198067, 814955), (371495, 434503), (400145, 403393)]