28403928

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 91498680

約数和(自身を除く): 63094752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 83, 84, 97, 98, 126, 147, 166, 168, 194, 196, 249, 252, 291, 294, 332, 388, 392, 441, 498, 504, 581, 582, 588, 664, 679, 747, 776, 873, 882, 996, 1162, 1164, 1176, 1358, 1494, 1743, 1746, 1764, 1992, 2037, 2324, 2328, 2716, 2988, 3486, 3492, 3528, 4067, 4074, 4648, 4753, 5229, 5432, 5976, 6111, 6972, 6984, 8051, 8134, 8148, 9506, 10458, 12201, 12222, 13944, 14259, 16102, 16268, 16296, 19012, 20916, 24153, 24402, 24444, 28518, 32204, 32536, 36603, 38024, 41832, 42777, 48306, 48804, 48888, 56357, 57036, 64408, 72459, 73206, 85554, 96612, 97608, 112714, 114072, 144918, 146412, 169071, 171108, 193224, 225428, 289836, 292824, 338142, 342216, 394499, 450856, 507213, 579672, 676284, 788998, 1014426, 1183497, 1352568, 1577996, 2028852, 2366994, 3155992, 3550491, 4057704, 4733988, 7100982, 9467976, 14201964, 28403928]

約数ペア:

[(1, 28403928), (2, 14201964), (3, 9467976), (4, 7100982), (6, 4733988), (7, 4057704), (8, 3550491), (9, 3155992), (12, 2366994), (14, 2028852), (18, 1577996), (21, 1352568), (24, 1183497), (28, 1014426), (36, 788998), (42, 676284), (49, 579672), (56, 507213), (63, 450856), (72, 394499), (83, 342216), (84, 338142), (97, 292824), (98, 289836), (126, 225428), (147, 193224), (166, 171108), (168, 169071), (194, 146412), (196, 144918), (249, 114072), (252, 112714), (291, 97608), (294, 96612), (332, 85554), (388, 73206), (392, 72459), (441, 64408), (498, 57036), (504, 56357), (581, 48888), (582, 48804), (588, 48306), (664, 42777), (679, 41832), (747, 38024), (776, 36603), (873, 32536), (882, 32204), (996, 28518), (1162, 24444), (1164, 24402), (1176, 24153), (1358, 20916), (1494, 19012), (1743, 16296), (1746, 16268), (1764, 16102), (1992, 14259), (2037, 13944), (2324, 12222), (2328, 12201), (2716, 10458), (2988, 9506), (3486, 8148), (3492, 8134), (3528, 8051), (4067, 6984), (4074, 6972), (4648, 6111), (4753, 5976), (5229, 5432)]