19802321280

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{491129}}^1$

素因数の和:491161

約数の個数: 192

約数和(自身を含む): 78148605600

約数和(自身を除く): 58346284320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6720, 8064, 10080, 13440, 20160, 40320, 491129, 982258, 1473387, 1964516, 2455645, 2946774, 3437903, 3929032, 4420161, 4911290, 5893548, 6875806, 7366935, 7858064, 8840322, 9822580, 10313709, 11787096, 13751612, 14733870, 15716128, 17189515, 17680644, 19645160, 20627418, 22100805, 23574192, 27503224, 29467740, 30941127, 31432256, 34379030, 35361288, 39290320, 41254836, 44201610, 47148384, 51568545, 55006448, 58935480, 61882254, 62864512, 68758060, 70722576, 78580640, 82509672, 88403220, 94296768, 103137090, 110012896, 117870960, 123764508, 137516120, 141445152, 154705635, 157161280, 165019344, 176806440, 188593536, 206274180, 220025792, 235741920, 247529016, 275032240, 282890304, 309411270, 314322560, 330038688, 353612880, 412548360, 440051584, 471483840, 495058032, 550064480, 565780608, 618822540, 660077376, 707225760, 825096720, 942967680, 990116064, 1100128960, 1237645080, 1320154752, 1414451520, 1650193440, 1980232128, 2200257920, 2475290160, 2828903040, 3300386880, 3960464256, 4950580320, 6600773760, 9901160640, 19802321280]

約数ペア:

[(1, 19802321280), (2, 9901160640), (3, 6600773760), (4, 4950580320), (5, 3960464256), (6, 3300386880), (7, 2828903040), (8, 2475290160), (9, 2200257920), (10, 1980232128), (12, 1650193440), (14, 1414451520), (15, 1320154752), (16, 1237645080), (18, 1100128960), (20, 990116064), (21, 942967680), (24, 825096720), (28, 707225760), (30, 660077376), (32, 618822540), (35, 565780608), (36, 550064480), (40, 495058032), (42, 471483840), (45, 440051584), (48, 412548360), (56, 353612880), (60, 330038688), (63, 314322560), (64, 309411270), (70, 282890304), (72, 275032240), (80, 247529016), (84, 235741920), (90, 220025792), (96, 206274180), (105, 188593536), (112, 176806440), (120, 165019344), (126, 157161280), (128, 154705635), (140, 141445152), (144, 137516120), (160, 123764508), (168, 117870960), (180, 110012896), (192, 103137090), (210, 94296768), (224, 88403220), (240, 82509672), (252, 78580640), (280, 70722576), (288, 68758060), (315, 62864512), (320, 61882254), (336, 58935480), (360, 55006448), (384, 51568545), (420, 47148384), (448, 44201610), (480, 41254836), (504, 39290320), (560, 35361288), (576, 34379030), (630, 31432256), (640, 30941127), (672, 29467740), (720, 27503224), (840, 23574192), (896, 22100805), (960, 20627418), (1008, 19645160), (1120, 17680644), (1152, 17189515), (1260, 15716128), (1344, 14733870), (1440, 13751612), (1680, 11787096), (1920, 10313709), (2016, 9822580), (2240, 8840322), (2520, 7858064), (2688, 7366935), (2880, 6875806), (3360, 5893548), (4032, 4911290), (4480, 4420161), (5040, 3929032), (5760, 3437903), (6720, 2946774), (8064, 2455645), (10080, 1964516), (13440, 1473387), (20160, 982258), (40320, 491129)]