20248228

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 47960640

約数和(自身を除く): 27712412

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 169, 182, 286, 308, 338, 364, 389, 572, 676, 778, 1001, 1183, 1556, 1859, 2002, 2366, 2723, 3718, 4004, 4279, 4732, 5057, 5446, 7436, 8558, 10114, 10892, 13013, 17116, 20228, 26026, 29953, 35399, 52052, 55627, 59906, 65741, 70798, 111254, 119812, 131482, 141596, 222508, 262964, 389389, 460187, 723151, 778778, 920374, 1446302, 1557556, 1840748, 2892604, 5062057, 10124114, 20248228]

約数ペア:

[(1, 20248228), (2, 10124114), (4, 5062057), (7, 2892604), (11, 1840748), (13, 1557556), (14, 1446302), (22, 920374), (26, 778778), (28, 723151), (44, 460187), (52, 389389), (77, 262964), (91, 222508), (143, 141596), (154, 131482), (169, 119812), (182, 111254), (286, 70798), (308, 65741), (338, 59906), (364, 55627), (389, 52052), (572, 35399), (676, 29953), (778, 26026), (1001, 20228), (1183, 17116), (1556, 13013), (1859, 10892), (2002, 10114), (2366, 8558), (2723, 7436), (3718, 5446), (4004, 5057), (4279, 4732)]