20504680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1093}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 53562240

約数和(自身を除く): 33057560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1093, 1340, 1876, 2186, 2345, 2680, 3752, 4372, 4690, 5465, 7651, 8744, 9380, 10930, 15302, 18760, 21860, 30604, 38255, 43720, 61208, 73231, 76510, 146462, 153020, 292924, 306040, 366155, 512617, 585848, 732310, 1025234, 1464620, 2050468, 2563085, 2929240, 4100936, 5126170, 10252340, 20504680]

約数ペア:

[(1, 20504680), (2, 10252340), (4, 5126170), (5, 4100936), (7, 2929240), (8, 2563085), (10, 2050468), (14, 1464620), (20, 1025234), (28, 732310), (35, 585848), (40, 512617), (56, 366155), (67, 306040), (70, 292924), (134, 153020), (140, 146462), (268, 76510), (280, 73231), (335, 61208), (469, 43720), (536, 38255), (670, 30604), (938, 21860), (1093, 18760), (1340, 15302), (1876, 10930), (2186, 9380), (2345, 8744), (2680, 7651), (3752, 5465), (4372, 4690)]