20009710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9857}}^1$

素因数の和:9900

約数の個数: 32

約数和(自身を含む): 42586560

約数和(自身を除く): 22576850

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 9857, 19714, 49285, 68999, 98570, 137998, 285853, 344995, 571706, 689990, 1429265, 2000971, 2858530, 4001942, 10004855, 20009710]

約数ペア:

[(1, 20009710), (2, 10004855), (5, 4001942), (7, 2858530), (10, 2000971), (14, 1429265), (29, 689990), (35, 571706), (58, 344995), (70, 285853), (145, 137998), (203, 98570), (290, 68999), (406, 49285), (1015, 19714), (2030, 9857)]