18780190.000000000

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16421}}^1$

素因数の和:16506

約数の個数: 60

約数和(自身を含む): 476500752

約数和(自身を除く): 308612448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2556, 3408, 5112, 10224, 16421, 32842, 49263, 65684, 98526, 131368, 147789, 197052, 262736, 295578, 394104, 591156, 788208, 1165891, 1182312, 2331782, 2364624, 3497673, 4663564, 6995346, 9327128, 10493019, 13990692, 18654256, 20986038, 27981384, 41972076, 55962768, 83944152, 167888304]

約数ペア:

[(1, 167888304), (2, 83944152), (3, 55962768), (4, 41972076), (6, 27981384), (8, 20986038), (9, 18654256), (12, 13990692), (16, 10493019), (18, 9327128), (24, 6995346), (36, 4663564), (48, 3497673), (71, 2364624), (72, 2331782), (142, 1182312), (144, 1165891), (213, 788208), (284, 591156), (426, 394104), (568, 295578), (639, 262736), (852, 197052), (1136, 147789), (1278, 131368), (1704, 98526), (2556, 65684), (3408, 49263), (5112, 32842), (10224, 16421)]