20188717178

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{20441}}^1$

素因数の和:20595

約数の個数: 64

約数和(自身を含む): 37678694400

約数和(自身を除く): 17489977222

約数列:

[1, 2, 7, 14, 19, 38, 47, 79, 94, 133, 158, 266, 329, 553, 658, 893, 1106, 1501, 1786, 3002, 3713, 6251, 7426, 10507, 12502, 20441, 21014, 25991, 40882, 51982, 70547, 141094, 143087, 286174, 388379, 493829, 776758, 960727, 987658, 1614839, 1921454, 2718653, 3229678, 5437306, 6725089, 11303873, 13450178, 18253813, 22607746, 30681941, 36507626, 61363882, 75897433, 127776691, 151794866, 214773587, 255553382, 429547174, 531282031, 1062564062, 1442051227, 2884102454, 10094358589, 20188717178]

約数ペア:

[(1, 20188717178), (2, 10094358589), (7, 2884102454), (14, 1442051227), (19, 1062564062), (38, 531282031), (47, 429547174), (79, 255553382), (94, 214773587), (133, 151794866), (158, 127776691), (266, 75897433), (329, 61363882), (553, 36507626), (658, 30681941), (893, 22607746), (1106, 18253813), (1501, 13450178), (1786, 11303873), (3002, 6725089), (3713, 5437306), (6251, 3229678), (7426, 2718653), (10507, 1921454), (12502, 1614839), (20441, 987658), (21014, 960727), (25991, 776758), (40882, 493829), (51982, 388379), (70547, 286174), (141094, 143087)]