161665980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{384919}}^1$

素因数の和:384938

約数の個数: 48

約数和(自身を含む): 517332480

約数和(自身を除く): 355666500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 384919, 769838, 1154757, 1539676, 1924595, 2309514, 2694433, 3849190, 4619028, 5388866, 5773785, 7698380, 8083299, 10777732, 11547570, 13472165, 16166598, 23095140, 26944330, 32333196, 40416495, 53888660, 80832990, 161665980]

約数ペア:

[(1, 161665980), (2, 80832990), (3, 53888660), (4, 40416495), (5, 32333196), (6, 26944330), (7, 23095140), (10, 16166598), (12, 13472165), (14, 11547570), (15, 10777732), (20, 8083299), (21, 7698380), (28, 5773785), (30, 5388866), (35, 4619028), (42, 3849190), (60, 2694433), (70, 2309514), (84, 1924595), (105, 1539676), (140, 1154757), (210, 769838), (420, 384919)]