12881380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{683}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 16076444

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 683, 820, 943, 1366, 1886, 2732, 3415, 3772, 4715, 6830, 9430, 13660, 15709, 18860, 28003, 31418, 56006, 62836, 78545, 112012, 140015, 157090, 280030, 314180, 560060, 644069, 1288138, 2576276, 3220345, 6440690, 12881380]

約数ペア:

[(1, 12881380), (2, 6440690), (4, 3220345), (5, 2576276), (10, 1288138), (20, 644069), (23, 560060), (41, 314180), (46, 280030), (82, 157090), (92, 140015), (115, 112012), (164, 78545), (205, 62836), (230, 56006), (410, 31418), (460, 28003), (683, 18860), (820, 15709), (943, 13660), (1366, 9430), (1886, 6830), (2732, 4715), (3415, 3772)]