640925895680

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{2554711}}^1$

素因数の和:2554750

約数の個数: 132

約数和(自身を含む): 1788487448688

約数和(自身を除く): 1147561553008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1024, 1120, 1280, 1568, 1792, 1960, 2240, 2560, 3136, 3584, 3920, 4480, 5120, 6272, 7168, 7840, 8960, 12544, 15680, 17920, 25088, 31360, 35840, 50176, 62720, 125440, 250880, 2554711, 5109422, 10218844, 12773555, 17882977, 20437688, 25547110, 35765954, 40875376, 51094220, 71531908, 81750752, 89414885, 102188440, 125180839, 143063816, 163501504, 178829770, 204376880, 250361678, 286127632, 327003008, 357659540, 408753760, 500723356, 572255264, 625904195, 654006016, 715319080, 817507520, 1001446712, 1144510528, 1251808390, 1308012032, 1430638160, 1635015040, 2002893424, 2289021056, 2503616780, 2616024064, 2861276320, 3270030080, 4005786848, 4578042112, 5007233560, 5722552640, 6540060160, 8011573696, 9156084224, 10014467120, 11445105280, 13080120320, 16023147392, 18312168448, 20028934240, 22890210560, 32046294784, 40057868480, 45780421120, 64092589568, 80115736960, 91560842240, 128185179136, 160231473920, 320462947840, 640925895680]

約数ペア:

[(1, 640925895680), (2, 320462947840), (4, 160231473920), (5, 128185179136), (7, 91560842240), (8, 80115736960), (10, 64092589568), (14, 45780421120), (16, 40057868480), (20, 32046294784), (28, 22890210560), (32, 20028934240), (35, 18312168448), (40, 16023147392), (49, 13080120320), (56, 11445105280), (64, 10014467120), (70, 9156084224), (80, 8011573696), (98, 6540060160), (112, 5722552640), (128, 5007233560), (140, 4578042112), (160, 4005786848), (196, 3270030080), (224, 2861276320), (245, 2616024064), (256, 2503616780), (280, 2289021056), (320, 2002893424), (392, 1635015040), (448, 1430638160), (490, 1308012032), (512, 1251808390), (560, 1144510528), (640, 1001446712), (784, 817507520), (896, 715319080), (980, 654006016), (1024, 625904195), (1120, 572255264), (1280, 500723356), (1568, 408753760), (1792, 357659540), (1960, 327003008), (2240, 286127632), (2560, 250361678), (3136, 204376880), (3584, 178829770), (3920, 163501504), (4480, 143063816), (5120, 125180839), (6272, 102188440), (7168, 89414885), (7840, 81750752), (8960, 71531908), (12544, 51094220), (15680, 40875376), (17920, 35765954), (25088, 25547110), (31360, 20437688), (35840, 17882977), (50176, 12773555), (62720, 10218844), (125440, 5109422), (250880, 2554711)]