28505568

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{251}}^1$

素因数の和:297

約数の個数: 144

約数和(自身を含む): 92969856

約数和(自身を除く): 64464288

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 78, 84, 91, 96, 104, 112, 156, 168, 169, 182, 208, 224, 251, 273, 312, 336, 338, 364, 416, 502, 507, 546, 624, 672, 676, 728, 753, 1004, 1014, 1092, 1183, 1248, 1352, 1456, 1506, 1757, 2008, 2028, 2184, 2366, 2704, 2912, 3012, 3263, 3514, 3549, 4016, 4056, 4368, 4732, 5271, 5408, 6024, 6526, 7028, 7098, 8032, 8112, 8736, 9464, 9789, 10542, 12048, 13052, 14056, 14196, 16224, 18928, 19578, 21084, 22841, 24096, 26104, 28112, 28392, 37856, 39156, 42168, 42419, 45682, 52208, 56224, 56784, 68523, 78312, 84336, 84838, 91364, 104416, 113568, 127257, 137046, 156624, 168672, 169676, 182728, 254514, 274092, 296933, 313248, 339352, 365456, 509028, 548184, 593866, 678704, 730912, 890799, 1018056, 1096368, 1187732, 1357408, 1781598, 2036112, 2192736, 2375464, 3563196, 4072224, 4750928, 7126392, 9501856, 14252784, 28505568]

約数ペア:

[(1, 28505568), (2, 14252784), (3, 9501856), (4, 7126392), (6, 4750928), (7, 4072224), (8, 3563196), (12, 2375464), (13, 2192736), (14, 2036112), (16, 1781598), (21, 1357408), (24, 1187732), (26, 1096368), (28, 1018056), (32, 890799), (39, 730912), (42, 678704), (48, 593866), (52, 548184), (56, 509028), (78, 365456), (84, 339352), (91, 313248), (96, 296933), (104, 274092), (112, 254514), (156, 182728), (168, 169676), (169, 168672), (182, 156624), (208, 137046), (224, 127257), (251, 113568), (273, 104416), (312, 91364), (336, 84838), (338, 84336), (364, 78312), (416, 68523), (502, 56784), (507, 56224), (546, 52208), (624, 45682), (672, 42419), (676, 42168), (728, 39156), (753, 37856), (1004, 28392), (1014, 28112), (1092, 26104), (1183, 24096), (1248, 22841), (1352, 21084), (1456, 19578), (1506, 18928), (1757, 16224), (2008, 14196), (2028, 14056), (2184, 13052), (2366, 12048), (2704, 10542), (2912, 9789), (3012, 9464), (3263, 8736), (3514, 8112), (3549, 8032), (4016, 7098), (4056, 7028), (4368, 6526), (4732, 6024), (5271, 5408)]