19900430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1601}}^1$

素因数の和:1732

約数の個数: 32

約数和(自身を含む): 39447648

約数和(自身を除く): 19547218

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 1601, 2486, 3202, 6215, 8005, 12430, 16010, 17611, 35222, 88055, 176110, 180913, 361826, 904565, 1809130, 1990043, 3980086, 9950215, 19900430]

約数ペア:

[(1, 19900430), (2, 9950215), (5, 3980086), (10, 1990043), (11, 1809130), (22, 904565), (55, 361826), (110, 180913), (113, 176110), (226, 88055), (565, 35222), (1130, 17611), (1243, 16010), (1601, 12430), (2486, 8005), (3202, 6215)]