20248865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 9942751

約数列:

[1, 5, 7, 13, 35, 65, 91, 191, 233, 455, 955, 1165, 1337, 1631, 2483, 3029, 6685, 8155, 12415, 15145, 17381, 21203, 44503, 86905, 106015, 222515, 311521, 578539, 1557605, 2892695, 4049773, 20248865]

約数ペア:

[(1, 20248865), (5, 4049773), (7, 2892695), (13, 1557605), (35, 578539), (65, 311521), (91, 222515), (191, 106015), (233, 86905), (455, 44503), (955, 21203), (1165, 17381), (1337, 15145), (1631, 12415), (2483, 8155), (3029, 6685)]