20199182780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{307633}}^1$

素因数の和:307723

約数の個数: 72

約数和(自身を含む): 50080354128

約数和(自身を除く): 29881171348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 469, 490, 670, 938, 980, 1340, 1876, 2345, 3283, 4690, 6566, 9380, 13132, 16415, 32830, 65660, 307633, 615266, 1230532, 1538165, 2153431, 3076330, 4306862, 6152660, 8613724, 10767155, 15074017, 20611411, 21534310, 30148034, 41222822, 43068620, 60296068, 75370085, 82445644, 103057055, 144279877, 150740170, 206114110, 288559754, 301480340, 412228220, 577119508, 721399385, 1009959139, 1442798770, 2019918278, 2885597540, 4039836556, 5049795695, 10099591390, 20199182780]

約数ペア:

[(1, 20199182780), (2, 10099591390), (4, 5049795695), (5, 4039836556), (7, 2885597540), (10, 2019918278), (14, 1442798770), (20, 1009959139), (28, 721399385), (35, 577119508), (49, 412228220), (67, 301480340), (70, 288559754), (98, 206114110), (134, 150740170), (140, 144279877), (196, 103057055), (245, 82445644), (268, 75370085), (335, 60296068), (469, 43068620), (490, 41222822), (670, 30148034), (938, 21534310), (980, 20611411), (1340, 15074017), (1876, 10767155), (2345, 8613724), (3283, 6152660), (4690, 4306862), (6566, 3076330), (9380, 2153431), (13132, 1538165), (16415, 1230532), (32830, 615266), (65660, 307633)]