820906380

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2749}}^1$

素因数の和:2853

約数の個数: 192

約数和(自身を含む): 2956800000

約数和(自身を除く): 2135893620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 79, 84, 90, 105, 108, 126, 135, 140, 158, 180, 189, 210, 237, 252, 270, 315, 316, 378, 395, 420, 474, 540, 553, 630, 711, 756, 790, 945, 948, 1106, 1185, 1260, 1422, 1580, 1659, 1890, 2133, 2212, 2370, 2749, 2765, 2844, 3318, 3555, 3780, 4266, 4740, 4977, 5498, 5530, 6636, 7110, 8247, 8295, 8532, 9954, 10665, 10996, 11060, 13745, 14220, 14931, 16494, 16590, 19243, 19908, 21330, 24741, 24885, 27490, 29862, 32988, 33180, 38486, 41235, 42660, 49482, 49770, 54980, 57729, 59724, 74223, 74655, 76972, 82470, 96215, 98964, 99540, 115458, 123705, 148446, 149310, 164940, 173187, 192430, 217171, 230916, 247410, 288645, 296892, 298620, 346374, 371115, 384860, 434342, 494820, 519561, 577290, 651513, 692748, 742230, 865935, 868684, 1039122, 1085855, 1154580, 1303026, 1484460, 1520197, 1731870, 1954539, 2078244, 2171710, 2597805, 2606052, 3040394, 3257565, 3463740, 3909078, 4343420, 4560591, 5195610, 5863617, 6080788, 6515130, 7600985, 7818156, 9121182, 9772695, 10391220, 11727234, 13030260, 13681773, 15201970, 18242364, 19545390, 22802955, 23454468, 27363546, 29318085, 30403940, 39090780, 41045319, 45605910, 54727092, 58636170, 68408865, 82090638, 91211820, 117272340, 136817730, 164181276, 205226595, 273635460, 410453190, 820906380]

約数ペア:

[(1, 820906380), (2, 410453190), (3, 273635460), (4, 205226595), (5, 164181276), (6, 136817730), (7, 117272340), (9, 91211820), (10, 82090638), (12, 68408865), (14, 58636170), (15, 54727092), (18, 45605910), (20, 41045319), (21, 39090780), (27, 30403940), (28, 29318085), (30, 27363546), (35, 23454468), (36, 22802955), (42, 19545390), (45, 18242364), (54, 15201970), (60, 13681773), (63, 13030260), (70, 11727234), (79, 10391220), (84, 9772695), (90, 9121182), (105, 7818156), (108, 7600985), (126, 6515130), (135, 6080788), (140, 5863617), (158, 5195610), (180, 4560591), (189, 4343420), (210, 3909078), (237, 3463740), (252, 3257565), (270, 3040394), (315, 2606052), (316, 2597805), (378, 2171710), (395, 2078244), (420, 1954539), (474, 1731870), (540, 1520197), (553, 1484460), (630, 1303026), (711, 1154580), (756, 1085855), (790, 1039122), (945, 868684), (948, 865935), (1106, 742230), (1185, 692748), (1260, 651513), (1422, 577290), (1580, 519561), (1659, 494820), (1890, 434342), (2133, 384860), (2212, 371115), (2370, 346374), (2749, 298620), (2765, 296892), (2844, 288645), (3318, 247410), (3555, 230916), (3780, 217171), (4266, 192430), (4740, 173187), (4977, 164940), (5498, 149310), (5530, 148446), (6636, 123705), (7110, 115458), (8247, 99540), (8295, 98964), (8532, 96215), (9954, 82470), (10665, 76972), (10996, 74655), (11060, 74223), (13745, 59724), (14220, 57729), (14931, 54980), (16494, 49770), (16590, 49482), (19243, 42660), (19908, 41235), (21330, 38486), (24741, 33180), (24885, 32988), (27490, 29862)]