21378500640

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{706961}}^1$

素因数の和:706992

約数の個数: 192

約数和(自身を含む): 85514123520

約数和(自身を除く): 64135622880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 706961, 1413922, 2120883, 2827844, 3534805, 4241766, 4948727, 5655688, 6362649, 7069610, 8483532, 9897454, 10604415, 11311376, 12725298, 14139220, 14846181, 16967064, 19087947, 19794908, 21208830, 22622752, 24743635, 25450596, 28278440, 29692362, 31813245, 33934128, 38175894, 39589816, 42417660, 44538543, 49487270, 50901192, 56556880, 59384724, 63626490, 67868256, 74230905, 76351788, 79179632, 84835320, 89077086, 95439735, 98974540, 101802384, 113113760, 118769448, 127252980, 133615629, 148461810, 152703576, 158359264, 169670640, 178154172, 190879470, 197949080, 203604768, 222692715, 237538896, 254505960, 267231258, 296923620, 305407152, 339341280, 356308344, 381758940, 395898160, 445385430, 475077792, 509011920, 534462516, 593847240, 610814304, 668078145, 712616688, 763517880, 791796320, 890770860, 1018023840, 1068925032, 1187694480, 1336156290, 1425233376, 1527035760, 1781541720, 2137850064, 2375388960, 2672312580, 3054071520, 3563083440, 4275700128, 5344625160, 7126166880, 10689250320, 21378500640]

約数ペア:

[(1, 21378500640), (2, 10689250320), (3, 7126166880), (4, 5344625160), (5, 4275700128), (6, 3563083440), (7, 3054071520), (8, 2672312580), (9, 2375388960), (10, 2137850064), (12, 1781541720), (14, 1527035760), (15, 1425233376), (16, 1336156290), (18, 1187694480), (20, 1068925032), (21, 1018023840), (24, 890770860), (27, 791796320), (28, 763517880), (30, 712616688), (32, 668078145), (35, 610814304), (36, 593847240), (40, 534462516), (42, 509011920), (45, 475077792), (48, 445385430), (54, 395898160), (56, 381758940), (60, 356308344), (63, 339341280), (70, 305407152), (72, 296923620), (80, 267231258), (84, 254505960), (90, 237538896), (96, 222692715), (105, 203604768), (108, 197949080), (112, 190879470), (120, 178154172), (126, 169670640), (135, 158359264), (140, 152703576), (144, 148461810), (160, 133615629), (168, 127252980), (180, 118769448), (189, 113113760), (210, 101802384), (216, 98974540), (224, 95439735), (240, 89077086), (252, 84835320), (270, 79179632), (280, 76351788), (288, 74230905), (315, 67868256), (336, 63626490), (360, 59384724), (378, 56556880), (420, 50901192), (432, 49487270), (480, 44538543), (504, 42417660), (540, 39589816), (560, 38175894), (630, 33934128), (672, 31813245), (720, 29692362), (756, 28278440), (840, 25450596), (864, 24743635), (945, 22622752), (1008, 21208830), (1080, 19794908), (1120, 19087947), (1260, 16967064), (1440, 14846181), (1512, 14139220), (1680, 12725298), (1890, 11311376), (2016, 10604415), (2160, 9897454), (2520, 8483532), (3024, 7069610), (3360, 6362649), (3780, 5655688), (4320, 4948727), (5040, 4241766), (6048, 3534805), (7560, 2827844), (10080, 2120883), (15120, 1413922), (30240, 706961)]