220121860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7901}}^1$

素因数の和:8116

約数の個数: 48

約数和(自身を含む): 531014400

約数和(自身を除く): 310892540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 7901, 13930, 15802, 27860, 31604, 39505, 55307, 79010, 110614, 158020, 221228, 276535, 553070, 1106140, 1572299, 3144598, 6289196, 7861495, 11006093, 15722990, 22012186, 31445980, 44024372, 55030465, 110060930, 220121860]

約数ペア:

[(1, 220121860), (2, 110060930), (4, 55030465), (5, 44024372), (7, 31445980), (10, 22012186), (14, 15722990), (20, 11006093), (28, 7861495), (35, 6289196), (70, 3144598), (140, 1572299), (199, 1106140), (398, 553070), (796, 276535), (995, 221228), (1393, 158020), (1990, 110614), (2786, 79010), (3980, 55307), (5572, 39505), (6965, 31604), (7901, 27860), (13930, 15802)]