200553880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1060

約数の個数: 64

約数和(自身を含む): 468737280

約数和(自身を除く): 268183400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 310, 394, 620, 788, 821, 985, 1240, 1576, 1642, 1970, 3284, 3940, 4105, 6107, 6568, 7880, 8210, 12214, 16420, 24428, 25451, 30535, 32840, 48856, 50902, 61070, 101804, 122140, 127255, 161737, 203608, 244280, 254510, 323474, 509020, 646948, 808685, 1018040, 1293896, 1617370, 3234740, 5013847, 6469480, 10027694, 20055388, 25069235, 40110776, 50138470, 100276940, 200553880]

約数ペア:

[(1, 200553880), (2, 100276940), (4, 50138470), (5, 40110776), (8, 25069235), (10, 20055388), (20, 10027694), (31, 6469480), (40, 5013847), (62, 3234740), (124, 1617370), (155, 1293896), (197, 1018040), (248, 808685), (310, 646948), (394, 509020), (620, 323474), (788, 254510), (821, 244280), (985, 203608), (1240, 161737), (1576, 127255), (1642, 122140), (1970, 101804), (3284, 61070), (3940, 50902), (4105, 48856), (6107, 32840), (6568, 30535), (7880, 25451), (8210, 24428), (12214, 16420)]