2012047720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1\times {\mathrm{809}}^1$

素因数の和:1558

約数の個数: 64

約数和(自身を含む): 4586576400

約数和(自身を除く): 2574528680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 641, 776, 809, 970, 1282, 1618, 1940, 2564, 3205, 3236, 3880, 4045, 5128, 6410, 6472, 8090, 12820, 16180, 25640, 32360, 62177, 78473, 124354, 156946, 248708, 310885, 313892, 392365, 497416, 518569, 621770, 627784, 784730, 1037138, 1243540, 1569460, 2074276, 2487080, 2592845, 3138920, 4148552, 5185690, 10371380, 20742760, 50301193, 100602386, 201204772, 251505965, 402409544, 503011930, 1006023860, 2012047720]

約数ペア:

[(1, 2012047720), (2, 1006023860), (4, 503011930), (5, 402409544), (8, 251505965), (10, 201204772), (20, 100602386), (40, 50301193), (97, 20742760), (194, 10371380), (388, 5185690), (485, 4148552), (641, 3138920), (776, 2592845), (809, 2487080), (970, 2074276), (1282, 1569460), (1618, 1243540), (1940, 1037138), (2564, 784730), (3205, 627784), (3236, 621770), (3880, 518569), (4045, 497416), (5128, 392365), (6410, 313892), (6472, 310885), (8090, 248708), (12820, 156946), (16180, 124354), (25640, 78473), (32360, 62177)]