2171964160

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:610

約数の個数: 144

約数和(自身を含む): 5425201152

約数和(自身を除く): 3253236992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 310, 320, 431, 496, 508, 620, 635, 640, 862, 992, 1016, 1240, 1270, 1280, 1724, 1984, 2032, 2155, 2480, 2540, 3448, 3937, 3968, 4064, 4310, 4960, 5080, 6896, 7874, 7936, 8128, 8620, 9920, 10160, 13361, 13792, 15748, 16256, 17240, 19685, 19840, 20320, 26722, 27584, 31496, 32512, 34480, 39370, 39680, 40640, 53444, 54737, 55168, 62992, 66805, 68960, 78740, 81280, 106888, 109474, 110336, 125984, 133610, 137920, 157480, 162560, 213776, 218948, 251968, 267220, 273685, 275840, 314960, 427552, 437896, 503936, 534440, 547370, 551680, 629920, 855104, 875792, 1007872, 1068880, 1094740, 1259840, 1696847, 1710208, 1751584, 2137760, 2189480, 2519680, 3393694, 3420416, 3503168, 4275520, 4378960, 5039360, 6787388, 7006336, 8484235, 8551040, 8757920, 13574776, 14012672, 16968470, 17102080, 17515840, 27149552, 33936940, 35031680, 54299104, 67873880, 70063360, 108598208, 135747760, 217196416, 271495520, 434392832, 542991040, 1085982080, 2171964160]

約数ペア:

[(1, 2171964160), (2, 1085982080), (4, 542991040), (5, 434392832), (8, 271495520), (10, 217196416), (16, 135747760), (20, 108598208), (31, 70063360), (32, 67873880), (40, 54299104), (62, 35031680), (64, 33936940), (80, 27149552), (124, 17515840), (127, 17102080), (128, 16968470), (155, 14012672), (160, 13574776), (248, 8757920), (254, 8551040), (256, 8484235), (310, 7006336), (320, 6787388), (431, 5039360), (496, 4378960), (508, 4275520), (620, 3503168), (635, 3420416), (640, 3393694), (862, 2519680), (992, 2189480), (1016, 2137760), (1240, 1751584), (1270, 1710208), (1280, 1696847), (1724, 1259840), (1984, 1094740), (2032, 1068880), (2155, 1007872), (2480, 875792), (2540, 855104), (3448, 629920), (3937, 551680), (3968, 547370), (4064, 534440), (4310, 503936), (4960, 437896), (5080, 427552), (6896, 314960), (7874, 275840), (7936, 273685), (8128, 267220), (8620, 251968), (9920, 218948), (10160, 213776), (13361, 162560), (13792, 157480), (15748, 137920), (16256, 133610), (17240, 125984), (19685, 110336), (19840, 109474), (20320, 106888), (26722, 81280), (27584, 78740), (31496, 68960), (32512, 66805), (34480, 62992), (39370, 55168), (39680, 54737), (40640, 53444)]