9991910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1292

約数の個数: 32

約数和(自身を含む): 19388160

約数和(自身を除く): 9396250

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1223, 1634, 2446, 4085, 6115, 8170, 12230, 23237, 46474, 52589, 105178, 116185, 232370, 262945, 525890, 999191, 1998382, 4995955, 9991910]

約数ペア:

[(1, 9991910), (2, 4995955), (5, 1998382), (10, 999191), (19, 525890), (38, 262945), (43, 232370), (86, 116185), (95, 105178), (190, 52589), (215, 46474), (430, 23237), (817, 12230), (1223, 8170), (1634, 6115), (2446, 4085)]