19987030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7717}}^1$

素因数の和:7768

約数の個数: 32

約数和(自身を含む): 42232896

約数和(自身を除く): 22245866

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 7717, 15434, 38585, 54019, 77170, 108038, 270095, 285529, 540190, 571058, 1427645, 1998703, 2855290, 3997406, 9993515, 19987030]

約数ペア:

[(1, 19987030), (2, 9993515), (5, 3997406), (7, 2855290), (10, 1998703), (14, 1427645), (35, 571058), (37, 540190), (70, 285529), (74, 270095), (185, 108038), (259, 77170), (370, 54019), (518, 38585), (1295, 15434), (2590, 7717)]