12883220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4001}}^1$

素因数の和:4040

約数の個数: 48

約数和(自身を含む): 32272128

約数和(自身を除く): 19388908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4001, 8002, 16004, 20005, 28007, 40010, 56014, 80020, 92023, 112028, 140035, 184046, 280070, 368092, 460115, 560140, 644161, 920230, 1288322, 1840460, 2576644, 3220805, 6441610, 12883220]

約数ペア:

[(1, 12883220), (2, 6441610), (4, 3220805), (5, 2576644), (7, 1840460), (10, 1288322), (14, 920230), (20, 644161), (23, 560140), (28, 460115), (35, 368092), (46, 280070), (70, 184046), (92, 140035), (115, 112028), (140, 92023), (161, 80020), (230, 56014), (322, 40010), (460, 28007), (644, 20005), (805, 16004), (1610, 8002), (3220, 4001)]