420591780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{333803}}^1$

素因数の和:333825

約数の個数: 72

約数和(自身を含む): 1458055872

約数和(自身を除く): 1037464092

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, 333803, 667606, 1001409, 1335212, 1669015, 2002818, 2336621, 3004227, 3338030, 4005636, 4673242, 5007045, 6008454, 6676060, 7009863, 9346484, 10014090, 11683105, 12016908, 14019726, 15021135, 20028180, 21029589, 23366210, 28039452, 30042270, 35049315, 42059178, 46732420, 60084540, 70098630, 84118356, 105147945, 140197260, 210295890, 420591780]

約数ペア:

[(1, 420591780), (2, 210295890), (3, 140197260), (4, 105147945), (5, 84118356), (6, 70098630), (7, 60084540), (9, 46732420), (10, 42059178), (12, 35049315), (14, 30042270), (15, 28039452), (18, 23366210), (20, 21029589), (21, 20028180), (28, 15021135), (30, 14019726), (35, 12016908), (36, 11683105), (42, 10014090), (45, 9346484), (60, 7009863), (63, 6676060), (70, 6008454), (84, 5007045), (90, 4673242), (105, 4005636), (126, 3338030), (140, 3004227), (180, 2336621), (210, 2002818), (252, 1669015), (315, 1335212), (420, 1001409), (630, 667606), (1260, 333803)]