211258980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3823}}^1$

素因数の和:4145

約数の個数: 72

約数和(自身を含む): 643074432

約数和(自身を除く): 431815452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 614, 921, 1228, 1535, 1842, 2763, 3070, 3684, 3823, 4605, 5526, 6140, 7646, 9210, 11052, 11469, 13815, 15292, 18420, 19115, 22938, 27630, 34407, 38230, 45876, 55260, 57345, 68814, 76460, 114690, 137628, 172035, 229380, 344070, 688140, 1173661, 2347322, 3520983, 4694644, 5868305, 7041966, 10562949, 11736610, 14083932, 17604915, 21125898, 23473220, 35209830, 42251796, 52814745, 70419660, 105629490, 211258980]

約数ペア:

[(1, 211258980), (2, 105629490), (3, 70419660), (4, 52814745), (5, 42251796), (6, 35209830), (9, 23473220), (10, 21125898), (12, 17604915), (15, 14083932), (18, 11736610), (20, 10562949), (30, 7041966), (36, 5868305), (45, 4694644), (60, 3520983), (90, 2347322), (180, 1173661), (307, 688140), (614, 344070), (921, 229380), (1228, 172035), (1535, 137628), (1842, 114690), (2763, 76460), (3070, 68814), (3684, 57345), (3823, 55260), (4605, 45876), (5526, 38230), (6140, 34407), (7646, 27630), (9210, 22938), (11052, 19115), (11469, 18420), (13815, 15292)]