261460920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2909}}^1$

素因数の和:3037

約数の個数: 128

約数和(自身を含む): 905126400

約数和(自身を除く): 643665480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 214, 280, 321, 420, 428, 535, 642, 749, 840, 856, 1070, 1284, 1498, 1605, 2140, 2247, 2568, 2909, 2996, 3210, 3745, 4280, 4494, 5818, 5992, 6420, 7490, 8727, 8988, 11235, 11636, 12840, 14545, 14980, 17454, 17976, 20363, 22470, 23272, 29090, 29960, 34908, 40726, 43635, 44940, 58180, 61089, 69816, 81452, 87270, 89880, 101815, 116360, 122178, 162904, 174540, 203630, 244356, 305445, 311263, 349080, 407260, 488712, 610890, 622526, 814520, 933789, 1221780, 1245052, 1556315, 1867578, 2178841, 2443560, 2490104, 3112630, 3735156, 4357682, 4668945, 6225260, 6536523, 7470312, 8715364, 9337890, 10894205, 12450520, 13073046, 17430728, 18675780, 21788410, 26146092, 32682615, 37351560, 43576820, 52292184, 65365230, 87153640, 130730460, 261460920]

約数ペア:

[(1, 261460920), (2, 130730460), (3, 87153640), (4, 65365230), (5, 52292184), (6, 43576820), (7, 37351560), (8, 32682615), (10, 26146092), (12, 21788410), (14, 18675780), (15, 17430728), (20, 13073046), (21, 12450520), (24, 10894205), (28, 9337890), (30, 8715364), (35, 7470312), (40, 6536523), (42, 6225260), (56, 4668945), (60, 4357682), (70, 3735156), (84, 3112630), (105, 2490104), (107, 2443560), (120, 2178841), (140, 1867578), (168, 1556315), (210, 1245052), (214, 1221780), (280, 933789), (321, 814520), (420, 622526), (428, 610890), (535, 488712), (642, 407260), (749, 349080), (840, 311263), (856, 305445), (1070, 244356), (1284, 203630), (1498, 174540), (1605, 162904), (2140, 122178), (2247, 116360), (2568, 101815), (2909, 89880), (2996, 87270), (3210, 81452), (3745, 69816), (4280, 61089), (4494, 58180), (5818, 44940), (5992, 43635), (6420, 40726), (7490, 34908), (8727, 29960), (8988, 29090), (11235, 23272), (11636, 22470), (12840, 20363), (14545, 17976), (14980, 17454)]