20212561135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{631}}^1\times {\mathrm{1069}}^1$

素因数の和:2179

約数の個数: 32

約数和(自身を含む): 26243521920

約数和(自身を除く): 6030960785

約数列:

[1, 5, 13, 65, 461, 631, 1069, 2305, 3155, 5345, 5993, 8203, 13897, 29965, 41015, 69485, 290891, 492809, 674539, 1454455, 2464045, 3372695, 3781583, 6406517, 8769007, 18907915, 32032585, 43845035, 310962479, 1554812395, 4042512227, 20212561135]

約数ペア:

[(1, 20212561135), (5, 4042512227), (13, 1554812395), (65, 310962479), (461, 43845035), (631, 32032585), (1069, 18907915), (2305, 8769007), (3155, 6406517), (5345, 3781583), (5993, 3372695), (8203, 2464045), (13897, 1454455), (29965, 674539), (41015, 492809), (69485, 290891)]