201781020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{68633}}^1$

素因数の和:68659

約数の個数: 72

約数和(自身を含む): 657239184

約数和(自身を除く): 455458164

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 68633, 137266, 205899, 274532, 343165, 411798, 480431, 686330, 823596, 960862, 1029495, 1372660, 1441293, 1921724, 2058990, 2402155, 2882586, 3363017, 4117980, 4804310, 5765172, 6726034, 7206465, 9608620, 10089051, 13452068, 14412930, 16815085, 20178102, 28825860, 33630170, 40356204, 50445255, 67260340, 100890510, 201781020]

約数ペア:

[(1, 201781020), (2, 100890510), (3, 67260340), (4, 50445255), (5, 40356204), (6, 33630170), (7, 28825860), (10, 20178102), (12, 16815085), (14, 14412930), (15, 13452068), (20, 10089051), (21, 9608620), (28, 7206465), (30, 6726034), (35, 5765172), (42, 4804310), (49, 4117980), (60, 3363017), (70, 2882586), (84, 2402155), (98, 2058990), (105, 1921724), (140, 1441293), (147, 1372660), (196, 1029495), (210, 960862), (245, 823596), (294, 686330), (420, 480431), (490, 411798), (588, 343165), (735, 274532), (980, 205899), (1470, 137266), (2940, 68633)]