640840320

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1567}}^1$

素因数の和:1663

約数の個数: 192

約数和(自身を含む): 2245501440

約数和(自身を除く): 1604661120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 128, 142, 144, 160, 180, 192, 213, 240, 284, 288, 320, 355, 360, 384, 426, 480, 568, 576, 639, 640, 710, 720, 852, 960, 1065, 1136, 1152, 1278, 1420, 1440, 1567, 1704, 1920, 2130, 2272, 2556, 2840, 2880, 3134, 3195, 3408, 4260, 4544, 4701, 5112, 5680, 5760, 6268, 6390, 6816, 7835, 8520, 9088, 9402, 10224, 11360, 12536, 12780, 13632, 14103, 15670, 17040, 18804, 20448, 22720, 23505, 25072, 25560, 27264, 28206, 31340, 34080, 37608, 40896, 45440, 47010, 50144, 51120, 56412, 62680, 68160, 70515, 75216, 81792, 94020, 100288, 102240, 111257, 112824, 125360, 136320, 141030, 150432, 188040, 200576, 204480, 222514, 225648, 250720, 282060, 300864, 333771, 376080, 408960, 445028, 451296, 501440, 556285, 564120, 601728, 667542, 752160, 890056, 902592, 1001313, 1002880, 1112570, 1128240, 1335084, 1504320, 1668855, 1780112, 1805184, 2002626, 2225140, 2256480, 2670168, 3008640, 3337710, 3560224, 4005252, 4450280, 4512960, 5006565, 5340336, 6675420, 7120448, 8010504, 8900560, 9025920, 10013130, 10680672, 13350840, 14240896, 16021008, 17801120, 20026260, 21361344, 26701680, 32042016, 35602240, 40052520, 42722688, 53403360, 64084032, 71204480, 80105040, 106806720, 128168064, 160210080, 213613440, 320420160, 640840320]

約数ペア:

[(1, 640840320), (2, 320420160), (3, 213613440), (4, 160210080), (5, 128168064), (6, 106806720), (8, 80105040), (9, 71204480), (10, 64084032), (12, 53403360), (15, 42722688), (16, 40052520), (18, 35602240), (20, 32042016), (24, 26701680), (30, 21361344), (32, 20026260), (36, 17801120), (40, 16021008), (45, 14240896), (48, 13350840), (60, 10680672), (64, 10013130), (71, 9025920), (72, 8900560), (80, 8010504), (90, 7120448), (96, 6675420), (120, 5340336), (128, 5006565), (142, 4512960), (144, 4450280), (160, 4005252), (180, 3560224), (192, 3337710), (213, 3008640), (240, 2670168), (284, 2256480), (288, 2225140), (320, 2002626), (355, 1805184), (360, 1780112), (384, 1668855), (426, 1504320), (480, 1335084), (568, 1128240), (576, 1112570), (639, 1002880), (640, 1001313), (710, 902592), (720, 890056), (852, 752160), (960, 667542), (1065, 601728), (1136, 564120), (1152, 556285), (1278, 501440), (1420, 451296), (1440, 445028), (1567, 408960), (1704, 376080), (1920, 333771), (2130, 300864), (2272, 282060), (2556, 250720), (2840, 225648), (2880, 222514), (3134, 204480), (3195, 200576), (3408, 188040), (4260, 150432), (4544, 141030), (4701, 136320), (5112, 125360), (5680, 112824), (5760, 111257), (6268, 102240), (6390, 100288), (6816, 94020), (7835, 81792), (8520, 75216), (9088, 70515), (9402, 68160), (10224, 62680), (11360, 56412), (12536, 51120), (12780, 50144), (13632, 47010), (14103, 45440), (15670, 40896), (17040, 37608), (18804, 34080), (20448, 31340), (22720, 28206), (23505, 27264), (25072, 25560)]