20119661660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2729}}^1\times {\mathrm{7523}}^1$

素因数の和:10275

約数の個数: 72

約数和(自身を含む): 49174004880

約数和(自身を除く): 29054343220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2729, 5458, 7523, 10916, 13645, 15046, 19103, 27290, 30092, 37615, 38206, 52661, 54580, 75230, 76412, 95515, 105322, 133721, 150460, 191030, 210644, 263305, 267442, 368627, 382060, 526610, 534884, 668605, 737254, 1053220, 1337210, 1474508, 1843135, 2674420, 3686270, 7372540, 20530267, 41060534, 82121068, 102651335, 143711869, 205302670, 287423738, 410605340, 574847476, 718559345, 1005983083, 1437118690, 2011966166, 2874237380, 4023932332, 5029915415, 10059830830, 20119661660]

約数ペア:

[(1, 20119661660), (2, 10059830830), (4, 5029915415), (5, 4023932332), (7, 2874237380), (10, 2011966166), (14, 1437118690), (20, 1005983083), (28, 718559345), (35, 574847476), (49, 410605340), (70, 287423738), (98, 205302670), (140, 143711869), (196, 102651335), (245, 82121068), (490, 41060534), (980, 20530267), (2729, 7372540), (5458, 3686270), (7523, 2674420), (10916, 1843135), (13645, 1474508), (15046, 1337210), (19103, 1053220), (27290, 737254), (30092, 668605), (37615, 534884), (38206, 526610), (52661, 382060), (54580, 368627), (75230, 267442), (76412, 263305), (95515, 210644), (105322, 191030), (133721, 150460)]