197949780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157103}}^1$

素因数の和:157125

約数の個数: 72

約数和(自身を含む): 686230272

約数和(自身を除く): 488280492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 157103, 314206, 471309, 628412, 785515, 942618, 1099721, 1413927, 1571030, 1885236, 2199442, 2356545, 2827854, 3142060, 3299163, 4398884, 4713090, 5498605, 5655708, 6598326, 7069635, 9426180, 9897489, 10997210, 13196652, 14139270, 16495815, 19794978, 21994420, 28278540, 32991630, 39589956, 49487445, 65983260, 98974890, 197949780]

約数ペア:

[(1, 197949780), (2, 98974890), (3, 65983260), (4, 49487445), (5, 39589956), (6, 32991630), (7, 28278540), (9, 21994420), (10, 19794978), (12, 16495815), (14, 14139270), (15, 13196652), (18, 10997210), (20, 9897489), (21, 9426180), (28, 7069635), (30, 6598326), (35, 5655708), (36, 5498605), (42, 4713090), (45, 4398884), (60, 3299163), (63, 3142060), (70, 2827854), (84, 2356545), (90, 2199442), (105, 1885236), (126, 1571030), (140, 1413927), (180, 1099721), (210, 942618), (252, 785515), (315, 628412), (420, 471309), (630, 314206), (1260, 157103)]