28735920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:499

約数の個数: 120

約数和(自身を含む): 97667856

約数和(自身を除く): 68931936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 107, 120, 144, 180, 214, 240, 321, 360, 373, 428, 535, 642, 720, 746, 856, 963, 1070, 1119, 1284, 1492, 1605, 1712, 1865, 1926, 2140, 2238, 2568, 2984, 3210, 3357, 3730, 3852, 4280, 4476, 4815, 5136, 5595, 5968, 6420, 6714, 7460, 7704, 8560, 8952, 9630, 11190, 12840, 13428, 14920, 15408, 16785, 17904, 19260, 22380, 25680, 26856, 29840, 33570, 38520, 39911, 44760, 53712, 67140, 77040, 79822, 89520, 119733, 134280, 159644, 199555, 239466, 268560, 319288, 359199, 399110, 478932, 598665, 638576, 718398, 798220, 957864, 1197330, 1436796, 1596440, 1795995, 1915728, 2394660, 2873592, 3192880, 3591990, 4789320, 5747184, 7183980, 9578640, 14367960, 28735920]

約数ペア:

[(1, 28735920), (2, 14367960), (3, 9578640), (4, 7183980), (5, 5747184), (6, 4789320), (8, 3591990), (9, 3192880), (10, 2873592), (12, 2394660), (15, 1915728), (16, 1795995), (18, 1596440), (20, 1436796), (24, 1197330), (30, 957864), (36, 798220), (40, 718398), (45, 638576), (48, 598665), (60, 478932), (72, 399110), (80, 359199), (90, 319288), (107, 268560), (120, 239466), (144, 199555), (180, 159644), (214, 134280), (240, 119733), (321, 89520), (360, 79822), (373, 77040), (428, 67140), (535, 53712), (642, 44760), (720, 39911), (746, 38520), (856, 33570), (963, 29840), (1070, 26856), (1119, 25680), (1284, 22380), (1492, 19260), (1605, 17904), (1712, 16785), (1865, 15408), (1926, 14920), (2140, 13428), (2238, 12840), (2568, 11190), (2984, 9630), (3210, 8952), (3357, 8560), (3730, 7704), (3852, 7460), (4280, 6714), (4476, 6420), (4815, 5968), (5136, 5595)]