20079680

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:627

約数の個数: 56

約数和(自身を含む): 48280320

約数和(自身を除く): 28200640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 479, 524, 655, 958, 1048, 1310, 1916, 2096, 2395, 2620, 3832, 4192, 4790, 5240, 7664, 8384, 9580, 10480, 15328, 19160, 20960, 30656, 38320, 41920, 62749, 76640, 125498, 153280, 250996, 313745, 501992, 627490, 1003984, 1254980, 2007968, 2509960, 4015936, 5019920, 10039840, 20079680]

約数ペア:

[(1, 20079680), (2, 10039840), (4, 5019920), (5, 4015936), (8, 2509960), (10, 2007968), (16, 1254980), (20, 1003984), (32, 627490), (40, 501992), (64, 313745), (80, 250996), (131, 153280), (160, 125498), (262, 76640), (320, 62749), (479, 41920), (524, 38320), (655, 30656), (958, 20960), (1048, 19160), (1310, 15328), (1916, 10480), (2096, 9580), (2395, 8384), (2620, 7664), (3832, 5240), (4192, 4790)]