389648

素因数分解:

$2^4\times 7^3\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 40

約数和(自身を含む): 892800

約数和(自身を除く): 503152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 71, 98, 112, 142, 196, 284, 343, 392, 497, 568, 686, 784, 994, 1136, 1372, 1988, 2744, 3479, 3976, 5488, 6958, 7952, 13916, 24353, 27832, 48706, 55664, 97412, 194824, 389648]

約数ペア:

[(1, 389648), (2, 194824), (4, 97412), (7, 55664), (8, 48706), (14, 27832), (16, 24353), (28, 13916), (49, 7952), (56, 6958), (71, 5488), (98, 3976), (112, 3479), (142, 2744), (196, 1988), (284, 1372), (343, 1136), (392, 994), (497, 784), (568, 686)]