20179983420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1459}}^1\times {\mathrm{1787}}^1$

素因数の和:3304

約数の個数: 144

約数和(自身を含む): 62714171520

約数和(自身を除く): 42534188100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1459, 1548, 1787, 1935, 2580, 2918, 3574, 3870, 4377, 5361, 5836, 7148, 7295, 7740, 8754, 8935, 10722, 13131, 14590, 16083, 17508, 17870, 21444, 21885, 26262, 26805, 29180, 32166, 35740, 43770, 52524, 53610, 62737, 64332, 65655, 76841, 80415, 87540, 107220, 125474, 131310, 153682, 160830, 188211, 230523, 250948, 262620, 307364, 313685, 321660, 376422, 384205, 461046, 564633, 627370, 691569, 752844, 768410, 922092, 941055, 1129266, 1152615, 1254740, 1383138, 1536820, 1882110, 2258532, 2305230, 2607233, 2766276, 2823165, 3457845, 3764220, 4610460, 5214466, 5646330, 6915690, 7821699, 10428932, 11292660, 13036165, 13831380, 15643398, 23465097, 26072330, 31286796, 39108495, 46930194, 52144660, 78216990, 93860388, 112111019, 117325485, 156433980, 224222038, 234650970, 336333057, 448444076, 469301940, 560555095, 672666114, 1008999171, 1121110190, 1345332228, 1681665285, 2017998342, 2242220380, 3363330570, 4035996684, 5044995855, 6726661140, 10089991710, 20179983420]

約数ペア:

[(1, 20179983420), (2, 10089991710), (3, 6726661140), (4, 5044995855), (5, 4035996684), (6, 3363330570), (9, 2242220380), (10, 2017998342), (12, 1681665285), (15, 1345332228), (18, 1121110190), (20, 1008999171), (30, 672666114), (36, 560555095), (43, 469301940), (45, 448444076), (60, 336333057), (86, 234650970), (90, 224222038), (129, 156433980), (172, 117325485), (180, 112111019), (215, 93860388), (258, 78216990), (387, 52144660), (430, 46930194), (516, 39108495), (645, 31286796), (774, 26072330), (860, 23465097), (1290, 15643398), (1459, 13831380), (1548, 13036165), (1787, 11292660), (1935, 10428932), (2580, 7821699), (2918, 6915690), (3574, 5646330), (3870, 5214466), (4377, 4610460), (5361, 3764220), (5836, 3457845), (7148, 2823165), (7295, 2766276), (7740, 2607233), (8754, 2305230), (8935, 2258532), (10722, 1882110), (13131, 1536820), (14590, 1383138), (16083, 1254740), (17508, 1152615), (17870, 1129266), (21444, 941055), (21885, 922092), (26262, 768410), (26805, 752844), (29180, 691569), (32166, 627370), (35740, 564633), (43770, 461046), (52524, 384205), (53610, 376422), (62737, 321660), (64332, 313685), (65655, 307364), (76841, 262620), (80415, 250948), (87540, 230523), (107220, 188211), (125474, 160830), (131310, 153682)]