20515716910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{23321}}^1$

素因数の和:23509

約数の個数: 64

約数和(自身を含む): 40763870784

約数和(自身を除く): 20248153874

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 101, 130, 134, 202, 335, 505, 670, 871, 1010, 1313, 1742, 2626, 4355, 6565, 6767, 8710, 13130, 13534, 23321, 33835, 46642, 67670, 87971, 116605, 175942, 233210, 303173, 439855, 606346, 879710, 1515865, 1562507, 2355421, 3031730, 3125014, 4710842, 7812535, 11777105, 15625070, 20312591, 23554210, 30620473, 40625182, 61240946, 101562955, 153102365, 157813207, 203125910, 306204730, 315626414, 789066035, 1578132070, 2051571691, 4103143382, 10257858455, 20515716910]

約数ペア:

[(1, 20515716910), (2, 10257858455), (5, 4103143382), (10, 2051571691), (13, 1578132070), (26, 789066035), (65, 315626414), (67, 306204730), (101, 203125910), (130, 157813207), (134, 153102365), (202, 101562955), (335, 61240946), (505, 40625182), (670, 30620473), (871, 23554210), (1010, 20312591), (1313, 15625070), (1742, 11777105), (2626, 7812535), (4355, 4710842), (6565, 3125014), (6767, 3031730), (8710, 2355421), (13130, 1562507), (13534, 1515865), (23321, 879710), (33835, 606346), (46642, 439855), (67670, 303173), (87971, 233210), (116605, 175942)]