28207452

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1987}}^1$

素因数の和:2027

約数の個数: 72

約数和(自身を含む): 81492096

約数和(自身を除く): 53284644

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 169, 182, 273, 338, 364, 507, 546, 676, 1014, 1092, 1183, 1987, 2028, 2366, 3549, 3974, 4732, 5961, 7098, 7948, 11922, 13909, 14196, 23844, 25831, 27818, 41727, 51662, 55636, 77493, 83454, 103324, 154986, 166908, 180817, 309972, 335803, 361634, 542451, 671606, 723268, 1007409, 1084902, 1343212, 2014818, 2169804, 2350621, 4029636, 4701242, 7051863, 9402484, 14103726, 28207452]

約数ペア:

[(1, 28207452), (2, 14103726), (3, 9402484), (4, 7051863), (6, 4701242), (7, 4029636), (12, 2350621), (13, 2169804), (14, 2014818), (21, 1343212), (26, 1084902), (28, 1007409), (39, 723268), (42, 671606), (52, 542451), (78, 361634), (84, 335803), (91, 309972), (156, 180817), (169, 166908), (182, 154986), (273, 103324), (338, 83454), (364, 77493), (507, 55636), (546, 51662), (676, 41727), (1014, 27818), (1092, 25831), (1183, 23844), (1987, 14196), (2028, 13909), (2366, 11922), (3549, 7948), (3974, 7098), (4732, 5961)]