20904456

素因数分解:

$2^3\times 3^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 54014400

約数和(自身を除く): 33109944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 61, 109, 122, 131, 183, 218, 244, 262, 327, 366, 393, 436, 488, 524, 654, 732, 786, 872, 1048, 1308, 1464, 1572, 2616, 3144, 6649, 7991, 13298, 14279, 15982, 19947, 23973, 26596, 28558, 31964, 39894, 42837, 47946, 53192, 57116, 63928, 79788, 85674, 95892, 114232, 159576, 171348, 191784, 342696, 871019, 1742038, 2613057, 3484076, 5226114, 6968152, 10452228, 20904456]

約数ペア:

[(1, 20904456), (2, 10452228), (3, 6968152), (4, 5226114), (6, 3484076), (8, 2613057), (12, 1742038), (24, 871019), (61, 342696), (109, 191784), (122, 171348), (131, 159576), (183, 114232), (218, 95892), (244, 85674), (262, 79788), (327, 63928), (366, 57116), (393, 53192), (436, 47946), (488, 42837), (524, 39894), (654, 31964), (732, 28558), (786, 26596), (872, 23973), (1048, 19947), (1308, 15982), (1464, 14279), (1572, 13298), (2616, 7991), (3144, 6649)]