20359690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{787}}^1$

素因数の和:1006

約数の個数: 32

約数和(自身を含む): 39715200

約数和(自身を除く): 19355510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 787, 995, 1574, 1990, 2587, 3935, 5174, 7870, 10231, 12935, 20462, 25870, 51155, 102310, 156613, 313226, 783065, 1566130, 2035969, 4071938, 10179845, 20359690]

約数ペア:

[(1, 20359690), (2, 10179845), (5, 4071938), (10, 2035969), (13, 1566130), (26, 783065), (65, 313226), (130, 156613), (199, 102310), (398, 51155), (787, 25870), (995, 20462), (1574, 12935), (1990, 10231), (2587, 7870), (3935, 5174)]