20180654864

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1\times {\mathrm{461}}^1$

素因数の和:936

約数の個数: 80

約数和(自身を含む): 40108932864

約数和(自身を除く): 19928278000

約数列:

[1, 2, 4, 8, 16, 101, 103, 202, 206, 263, 404, 412, 461, 526, 808, 824, 922, 1052, 1616, 1648, 1844, 2104, 3688, 4208, 7376, 10403, 20806, 26563, 27089, 41612, 46561, 47483, 53126, 54178, 83224, 93122, 94966, 106252, 108356, 121243, 166448, 186244, 189932, 212504, 216712, 242486, 372488, 379864, 425008, 433424, 484972, 744976, 759728, 969944, 1939888, 2735989, 4795783, 5471978, 9591566, 10943956, 12245543, 12488029, 19183132, 21887912, 24491086, 24976058, 38366264, 43775824, 48982172, 49952116, 76732528, 97964344, 99904232, 195928688, 199808464, 1261290929, 2522581858, 5045163716, 10090327432, 20180654864]

約数ペア:

[(1, 20180654864), (2, 10090327432), (4, 5045163716), (8, 2522581858), (16, 1261290929), (101, 199808464), (103, 195928688), (202, 99904232), (206, 97964344), (263, 76732528), (404, 49952116), (412, 48982172), (461, 43775824), (526, 38366264), (808, 24976058), (824, 24491086), (922, 21887912), (1052, 19183132), (1616, 12488029), (1648, 12245543), (1844, 10943956), (2104, 9591566), (3688, 5471978), (4208, 4795783), (7376, 2735989), (10403, 1939888), (20806, 969944), (26563, 759728), (27089, 744976), (41612, 484972), (46561, 433424), (47483, 425008), (53126, 379864), (54178, 372488), (83224, 242486), (93122, 216712), (94966, 212504), (106252, 189932), (108356, 186244), (121243, 166448)]