18944100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:155

約数の個数: 216

約数和(自身を含む): 70773248

約数和(自身を除く): 51829148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 31, 35, 36, 42, 45, 50, 60, 62, 63, 70, 75, 84, 90, 93, 97, 100, 105, 124, 126, 140, 150, 155, 175, 180, 186, 194, 210, 217, 225, 252, 279, 291, 300, 310, 315, 350, 372, 388, 420, 434, 450, 465, 485, 525, 558, 582, 620, 630, 651, 679, 700, 775, 868, 873, 900, 930, 970, 1050, 1085, 1116, 1164, 1260, 1302, 1358, 1395, 1455, 1550, 1575, 1746, 1860, 1940, 1953, 2037, 2100, 2170, 2325, 2425, 2604, 2716, 2790, 2910, 3007, 3100, 3150, 3255, 3395, 3492, 3906, 4074, 4340, 4365, 4650, 4850, 5425, 5580, 5820, 6014, 6111, 6300, 6510, 6790, 6975, 7275, 7812, 8148, 8730, 9021, 9300, 9700, 9765, 10185, 10850, 12028, 12222, 13020, 13580, 13950, 14550, 15035, 16275, 16975, 17460, 18042, 19530, 20370, 21049, 21700, 21825, 24444, 27063, 27900, 29100, 30070, 30555, 32550, 33950, 36084, 39060, 40740, 42098, 43650, 45105, 48825, 50925, 54126, 60140, 61110, 63147, 65100, 67900, 75175, 84196, 87300, 90210, 97650, 101850, 105245, 108252, 122220, 126294, 135315, 150350, 152775, 180420, 189441, 195300, 203700, 210490, 225525, 252588, 270630, 300700, 305550, 315735, 378882, 420980, 451050, 526225, 541260, 611100, 631470, 676575, 757764, 902100, 947205, 1052450, 1262940, 1353150, 1578675, 1894410, 2104900, 2706300, 3157350, 3788820, 4736025, 6314700, 9472050, 18944100]

約数ペア:

[(1, 18944100), (2, 9472050), (3, 6314700), (4, 4736025), (5, 3788820), (6, 3157350), (7, 2706300), (9, 2104900), (10, 1894410), (12, 1578675), (14, 1353150), (15, 1262940), (18, 1052450), (20, 947205), (21, 902100), (25, 757764), (28, 676575), (30, 631470), (31, 611100), (35, 541260), (36, 526225), (42, 451050), (45, 420980), (50, 378882), (60, 315735), (62, 305550), (63, 300700), (70, 270630), (75, 252588), (84, 225525), (90, 210490), (93, 203700), (97, 195300), (100, 189441), (105, 180420), (124, 152775), (126, 150350), (140, 135315), (150, 126294), (155, 122220), (175, 108252), (180, 105245), (186, 101850), (194, 97650), (210, 90210), (217, 87300), (225, 84196), (252, 75175), (279, 67900), (291, 65100), (300, 63147), (310, 61110), (315, 60140), (350, 54126), (372, 50925), (388, 48825), (420, 45105), (434, 43650), (450, 42098), (465, 40740), (485, 39060), (525, 36084), (558, 33950), (582, 32550), (620, 30555), (630, 30070), (651, 29100), (679, 27900), (700, 27063), (775, 24444), (868, 21825), (873, 21700), (900, 21049), (930, 20370), (970, 19530), (1050, 18042), (1085, 17460), (1116, 16975), (1164, 16275), (1260, 15035), (1302, 14550), (1358, 13950), (1395, 13580), (1455, 13020), (1550, 12222), (1575, 12028), (1746, 10850), (1860, 10185), (1940, 9765), (1953, 9700), (2037, 9300), (2100, 9021), (2170, 8730), (2325, 8148), (2425, 7812), (2604, 7275), (2716, 6975), (2790, 6790), (2910, 6510), (3007, 6300), (3100, 6111), (3150, 6014), (3255, 5820), (3395, 5580), (3492, 5425), (3906, 4850), (4074, 4650), (4340, 4365)]