20155702777

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 24223449600

約数和(自身を除く): 4067746823

約数列:

[1, 7, 49, 61, 149, 167, 271, 427, 1043, 1169, 1897, 2989, 7301, 8183, 9089, 10187, 13279, 16531, 24883, 40379, 45257, 63623, 71309, 115717, 174181, 282653, 316799, 445361, 499163, 810019, 1219267, 1517863, 1978571, 2217593, 2463119, 2760677, 6743293, 10625041, 17241833, 19324739, 47203051, 74375287, 120692831, 135273173, 330421357, 411340873, 2879386111, 20155702777]

約数ペア:

[(1, 20155702777), (7, 2879386111), (49, 411340873), (61, 330421357), (149, 135273173), (167, 120692831), (271, 74375287), (427, 47203051), (1043, 19324739), (1169, 17241833), (1897, 10625041), (2989, 6743293), (7301, 2760677), (8183, 2463119), (9089, 2217593), (10187, 1978571), (13279, 1517863), (16531, 1219267), (24883, 810019), (40379, 499163), (45257, 445361), (63623, 316799), (71309, 282653), (115717, 174181)]