281511048

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1007

約数の個数: 128

約数和(自身を含む): 872766720

約数和(自身を除く): 591255672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 157, 168, 182, 273, 312, 314, 364, 471, 546, 628, 728, 821, 942, 1092, 1099, 1256, 1642, 1884, 2041, 2184, 2198, 2463, 3284, 3297, 3768, 4082, 4396, 4926, 5747, 6123, 6568, 6594, 8164, 8792, 9852, 10673, 11494, 12246, 13188, 14287, 16328, 17241, 19704, 21346, 22988, 24492, 26376, 28574, 32019, 34482, 42692, 42861, 45976, 48984, 57148, 64038, 68964, 74711, 85384, 85722, 114296, 128076, 128897, 137928, 149422, 171444, 224133, 256152, 257794, 298844, 342888, 386691, 448266, 515588, 597688, 773382, 896532, 902279, 1031176, 1546764, 1675661, 1793064, 1804558, 2706837, 3093528, 3351322, 3609116, 5026983, 5413674, 6702644, 7218232, 10053966, 10827348, 11729627, 13405288, 20107932, 21654696, 23459254, 35188881, 40215864, 46918508, 70377762, 93837016, 140755524, 281511048]

約数ペア:

[(1, 281511048), (2, 140755524), (3, 93837016), (4, 70377762), (6, 46918508), (7, 40215864), (8, 35188881), (12, 23459254), (13, 21654696), (14, 20107932), (21, 13405288), (24, 11729627), (26, 10827348), (28, 10053966), (39, 7218232), (42, 6702644), (52, 5413674), (56, 5026983), (78, 3609116), (84, 3351322), (91, 3093528), (104, 2706837), (156, 1804558), (157, 1793064), (168, 1675661), (182, 1546764), (273, 1031176), (312, 902279), (314, 896532), (364, 773382), (471, 597688), (546, 515588), (628, 448266), (728, 386691), (821, 342888), (942, 298844), (1092, 257794), (1099, 256152), (1256, 224133), (1642, 171444), (1884, 149422), (2041, 137928), (2184, 128897), (2198, 128076), (2463, 114296), (3284, 85722), (3297, 85384), (3768, 74711), (4082, 68964), (4396, 64038), (4926, 57148), (5747, 48984), (6123, 45976), (6568, 42861), (6594, 42692), (8164, 34482), (8792, 32019), (9852, 28574), (10673, 26376), (11494, 24492), (12246, 22988), (13188, 21346), (14287, 19704), (16328, 17241)]