19982757600

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{213491}}^1$

素因数の和:213530

約数の個数: 216

約数和(自身を含む): 75884877432

約数和(自身を除く): 55902119832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 32, 36, 39, 40, 45, 48, 50, 52, 60, 65, 72, 75, 78, 80, 90, 96, 100, 104, 117, 120, 130, 144, 150, 156, 160, 180, 195, 200, 208, 225, 234, 240, 260, 288, 300, 312, 325, 360, 390, 400, 416, 450, 468, 480, 520, 585, 600, 624, 650, 720, 780, 800, 900, 936, 975, 1040, 1170, 1200, 1248, 1300, 1440, 1560, 1800, 1872, 1950, 2080, 2340, 2400, 2600, 2925, 3120, 3600, 3744, 3900, 4680, 5200, 5850, 6240, 7200, 7800, 9360, 10400, 11700, 15600, 18720, 23400, 31200, 46800, 93600, 213491, 426982, 640473, 853964, 1067455, 1280946, 1707928, 1921419, 2134910, 2561892, 2775383, 3202365, 3415856, 3842838, 4269820, 5123784, 5337275, 5550766, 6404730, 6831712, 7685676, 8326149, 8539640, 9607095, 10247568, 10674550, 11101532, 12809460, 13876915, 15371352, 16011825, 16652298, 17079280, 19214190, 20495136, 21349100, 22203064, 24978447, 25618920, 27753830, 30742704, 32023650, 33304596, 34158560, 38428380, 41630745, 42698200, 44406128, 48035475, 49956894, 51237840, 55507660, 61485408, 64047300, 66609192, 69384575, 76856760, 83261490, 85396400, 88812256, 96070950, 99913788, 102475680, 111015320, 124892235, 128094600, 133218384, 138769150, 153713520, 166522980, 170792800, 192141900, 199827576, 208153725, 222030640, 249784470, 256189200, 266436768, 277538300, 307427040, 333045960, 384283800, 399655152, 416307450, 444061280, 499568940, 512378400, 555076600, 624461175, 666091920, 768567600, 799310304, 832614900, 999137880, 1110153200, 1248922350, 1332183840, 1537135200, 1665229800, 1998275760, 2220306400, 2497844700, 3330459600, 3996551520, 4995689400, 6660919200, 9991378800, 19982757600]

約数ペア:

[(1, 19982757600), (2, 9991378800), (3, 6660919200), (4, 4995689400), (5, 3996551520), (6, 3330459600), (8, 2497844700), (9, 2220306400), (10, 1998275760), (12, 1665229800), (13, 1537135200), (15, 1332183840), (16, 1248922350), (18, 1110153200), (20, 999137880), (24, 832614900), (25, 799310304), (26, 768567600), (30, 666091920), (32, 624461175), (36, 555076600), (39, 512378400), (40, 499568940), (45, 444061280), (48, 416307450), (50, 399655152), (52, 384283800), (60, 333045960), (65, 307427040), (72, 277538300), (75, 266436768), (78, 256189200), (80, 249784470), (90, 222030640), (96, 208153725), (100, 199827576), (104, 192141900), (117, 170792800), (120, 166522980), (130, 153713520), (144, 138769150), (150, 133218384), (156, 128094600), (160, 124892235), (180, 111015320), (195, 102475680), (200, 99913788), (208, 96070950), (225, 88812256), (234, 85396400), (240, 83261490), (260, 76856760), (288, 69384575), (300, 66609192), (312, 64047300), (325, 61485408), (360, 55507660), (390, 51237840), (400, 49956894), (416, 48035475), (450, 44406128), (468, 42698200), (480, 41630745), (520, 38428380), (585, 34158560), (600, 33304596), (624, 32023650), (650, 30742704), (720, 27753830), (780, 25618920), (800, 24978447), (900, 22203064), (936, 21349100), (975, 20495136), (1040, 19214190), (1170, 17079280), (1200, 16652298), (1248, 16011825), (1300, 15371352), (1440, 13876915), (1560, 12809460), (1800, 11101532), (1872, 10674550), (1950, 10247568), (2080, 9607095), (2340, 8539640), (2400, 8326149), (2600, 7685676), (2925, 6831712), (3120, 6404730), (3600, 5550766), (3744, 5337275), (3900, 5123784), (4680, 4269820), (5200, 3842838), (5850, 3415856), (6240, 3202365), (7200, 2775383), (7800, 2561892), (9360, 2134910), (10400, 1921419), (11700, 1707928), (15600, 1280946), (18720, 1067455), (23400, 853964), (31200, 640473), (46800, 426982), (93600, 213491)]