251310780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199453}}^1$

素因数の和:199475

約数の個数: 72

約数和(自身を含む): 871215072

約数和(自身を除く): 619904292

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, 199453, 398906, 598359, 797812, 997265, 1196718, 1396171, 1795077, 1994530, 2393436, 2792342, 2991795, 3590154, 3989060, 4188513, 5584684, 5983590, 6980855, 7180308, 8377026, 8975385, 11967180, 12565539, 13961710, 16754052, 17950770, 20942565, 25131078, 27923420, 35901540, 41885130, 50262156, 62827695, 83770260, 125655390, 251310780]

約数ペア:

[(1, 251310780), (2, 125655390), (3, 83770260), (4, 62827695), (5, 50262156), (6, 41885130), (7, 35901540), (9, 27923420), (10, 25131078), (12, 20942565), (14, 17950770), (15, 16754052), (18, 13961710), (20, 12565539), (21, 11967180), (28, 8975385), (30, 8377026), (35, 7180308), (36, 6980855), (42, 5983590), (45, 5584684), (60, 4188513), (63, 3989060), (70, 3590154), (84, 2991795), (90, 2792342), (105, 2393436), (126, 1994530), (140, 1795077), (180, 1396171), (210, 1196718), (252, 997265), (315, 797812), (420, 598359), (630, 398906), (1260, 199453)]