28788012

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{523}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 80109120

約数和(自身を除く): 51321108

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 139, 198, 278, 396, 417, 523, 556, 834, 1046, 1251, 1529, 1569, 1668, 2092, 2502, 3058, 3138, 4587, 4707, 5004, 5753, 6116, 6276, 9174, 9414, 11506, 13761, 17259, 18348, 18828, 23012, 27522, 34518, 51777, 55044, 69036, 72697, 103554, 145394, 207108, 218091, 290788, 436182, 654273, 799667, 872364, 1308546, 1599334, 2399001, 2617092, 3198668, 4798002, 7197003, 9596004, 14394006, 28788012]

約数ペア:

[(1, 28788012), (2, 14394006), (3, 9596004), (4, 7197003), (6, 4798002), (9, 3198668), (11, 2617092), (12, 2399001), (18, 1599334), (22, 1308546), (33, 872364), (36, 799667), (44, 654273), (66, 436182), (99, 290788), (132, 218091), (139, 207108), (198, 145394), (278, 103554), (396, 72697), (417, 69036), (523, 55044), (556, 51777), (834, 34518), (1046, 27522), (1251, 23012), (1529, 18828), (1569, 18348), (1668, 17259), (2092, 13761), (2502, 11506), (3058, 9414), (3138, 9174), (4587, 6276), (4707, 6116), (5004, 5753)]