39983440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71399}}^1$

素因数の和:71419

約数の個数: 40

約数和(自身を含む): 106243200

約数和(自身を除く): 66259760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 71399, 142798, 285596, 356995, 499793, 571192, 713990, 999586, 1142384, 1427980, 1999172, 2498965, 2855960, 3998344, 4997930, 5711920, 7996688, 9995860, 19991720, 39983440]

約数ペア:

[(1, 39983440), (2, 19991720), (4, 9995860), (5, 7996688), (7, 5711920), (8, 4997930), (10, 3998344), (14, 2855960), (16, 2498965), (20, 1999172), (28, 1427980), (35, 1142384), (40, 999586), (56, 713990), (70, 571192), (80, 499793), (112, 356995), (140, 285596), (280, 142798), (560, 71399)]