72180800

素因数分解:

$2^6\times 5^2\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:448

約数の個数: 84

約数和(自身を含む): 179290980

約数和(自身を除く): 107110180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 197, 200, 229, 320, 394, 400, 458, 788, 800, 916, 985, 1145, 1576, 1600, 1832, 1970, 2290, 3152, 3664, 3940, 4580, 4925, 5725, 6304, 7328, 7880, 9160, 9850, 11450, 12608, 14656, 15760, 18320, 19700, 22900, 31520, 36640, 39400, 45113, 45800, 63040, 73280, 78800, 90226, 91600, 157600, 180452, 183200, 225565, 315200, 360904, 366400, 451130, 721808, 902260, 1127825, 1443616, 1804520, 2255650, 2887232, 3609040, 4511300, 7218080, 9022600, 14436160, 18045200, 36090400, 72180800]

約数ペア:

[(1, 72180800), (2, 36090400), (4, 18045200), (5, 14436160), (8, 9022600), (10, 7218080), (16, 4511300), (20, 3609040), (25, 2887232), (32, 2255650), (40, 1804520), (50, 1443616), (64, 1127825), (80, 902260), (100, 721808), (160, 451130), (197, 366400), (200, 360904), (229, 315200), (320, 225565), (394, 183200), (400, 180452), (458, 157600), (788, 91600), (800, 90226), (916, 78800), (985, 73280), (1145, 63040), (1576, 45800), (1600, 45113), (1832, 39400), (1970, 36640), (2290, 31520), (3152, 22900), (3664, 19700), (3940, 18320), (4580, 15760), (4925, 14656), (5725, 12608), (6304, 11450), (7328, 9850), (7880, 9160)]