38000020

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7393}}^1$

素因数の和:7659

約数の個数: 24

約数和(自身を含む): 80121384

約数和(自身を除く): 42121364

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 7393, 14786, 29572, 36965, 73930, 147860, 1900001, 3800002, 7600004, 9500005, 19000010, 38000020]

約数ペア:

[(1, 38000020), (2, 19000010), (4, 9500005), (5, 7600004), (10, 3800002), (20, 1900001), (257, 147860), (514, 73930), (1028, 36965), (1285, 29572), (2570, 14786), (5140, 7393)]