28742896

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1086

約数の個数: 80

約数和(自身を含む): 72217600

約数和(自身を除く): 43474704

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 728, 988, 1039, 1064, 1456, 1729, 1976, 2078, 2128, 3458, 3952, 4156, 6916, 7273, 8312, 13507, 13832, 14546, 16624, 19741, 27014, 27664, 29092, 39482, 54028, 58184, 78964, 94549, 108056, 116368, 138187, 157928, 189098, 216112, 256633, 276374, 315856, 378196, 513266, 552748, 756392, 1026532, 1105496, 1512784, 1796431, 2053064, 2210992, 3592862, 4106128, 7185724, 14371448, 28742896]

約数ペア:

[(1, 28742896), (2, 14371448), (4, 7185724), (7, 4106128), (8, 3592862), (13, 2210992), (14, 2053064), (16, 1796431), (19, 1512784), (26, 1105496), (28, 1026532), (38, 756392), (52, 552748), (56, 513266), (76, 378196), (91, 315856), (104, 276374), (112, 256633), (133, 216112), (152, 189098), (182, 157928), (208, 138187), (247, 116368), (266, 108056), (304, 94549), (364, 78964), (494, 58184), (532, 54028), (728, 39482), (988, 29092), (1039, 27664), (1064, 27014), (1456, 19741), (1729, 16624), (1976, 14546), (2078, 13832), (2128, 13507), (3458, 8312), (3952, 7273), (4156, 6916)]