13860220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^2$

素因数の和:522

約数の個数: 36

約数和(自身を含む): 31879512

約数和(自身を除く): 18019292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 2510, 2761, 5020, 5522, 11044, 13805, 27610, 55220, 63001, 126002, 252004, 315005, 630010, 693011, 1260020, 1386022, 2772044, 3465055, 6930110, 13860220]

約数ペア:

[(1, 13860220), (2, 6930110), (4, 3465055), (5, 2772044), (10, 1386022), (11, 1260020), (20, 693011), (22, 630010), (44, 315005), (55, 252004), (110, 126002), (220, 63001), (251, 55220), (502, 27610), (1004, 13805), (1255, 11044), (2510, 5522), (2761, 5020)]